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A little color. A new perspective.

Published Oct 22, 2026

The Train Leaves the Valley Tunnel

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Five colors, endless possibilities. Select a color to copy its HEX.

A dramatic rail-route palette with a muted green valley, pale mist, a charcoal tunnel, a distant violet ridge, and deep violet route text.

The feeling

A dark train entrance opening onto green slopes, pale mist, and a distant violet ridge

Explore this palette ↓

The mood

A train emerges from a dark tunnel and follows a diagonal viaduct above layered green slopes. Valley Layer holds the broad landscape, Mist Card softens the route overview, and Tunnel Mouth gives the train entrance a hard focal edge. Far Ridge lifts a pale violet shape behind the nearest slope.

Route Violet connects the diagonal rail line to departure choices and stop details. The scene moves from near darkness to open distance, giving the itinerary a clear direction across the page.

How to use it

Use Valley Layer for the route page and Route Violet for headings, stop names, departure labels, and links. Build the route overview and information cards in Mist Card. Use Tunnel Mouth for the train silhouette, tunnel opening, and active departure marker. Reserve Far Ridge for distant slopes, secondary stop panels, and quiet map areas.

Start with a 57/29/14 surface balance across Valley Layer, Mist Card, and Tunnel Mouth. Keep Far Ridge outside that ratio as a distant accent. Label every departure choice, number stops in route order, and pair the active selection with a marker and written state.

What to watch

Route Violet measures 5.23:1 on Valley Layer, 14.45:1 on Mist Card, and 10.62:1 on Far Ridge, passing the 4.5:1 normal-text threshold. On Tunnel Mouth it measures 1.19:1 and fails both 4.5:1 for normal text and 3:1 for large text. Use Mist Card on Tunnel Mouth at 12.13:1, or Far Ridge at 8.91:1.

Mist Card against Valley Layer measures 2.76:1, and Far Ridge against Valley Layer measures 2.03:1. Both fall below the 3:1 non-text threshold when a card edge matters. Outline those cards in Route Violet, which measures at least 10.62:1 against the card and 5.23:1 against the valley. Tunnel Mouth against Valley Layer reaches 4.39:1 and keeps a strong entrance boundary.

A considered balance

Make room for
the right colors.

Use Valley Layer for the field; Route Violet text on Valley Layer, Mist Card, and Far Ridge; and Mist Card or Far Ridge text on Tunnel Mouth. Use Mist Card for route details, Tunnel Mouth for the train entrance and active departure, and Far Ridge for secondary map areas. Outline pale cards in Route Violet and label every route state.

Start with a generous background, introduce your primary color, then use the highlight sparingly. The ratios are a guide for large surfaces, not a fixed recipe.

57 Base
29 Main
14 Point
Valley Layer

Background & breathing room

Mist Card

Cards, graphics & sections

Tunnel Mouth

Focal areas & key details

Background · Primary · Highlight. Use text and accent colors where their roles call for them.

Text on background
5.23:1 #28152F on #7C9676 · AA normal text
Text on primary
14.45:1 #28152F on #EDEDEA · AAA normal text
Text on highlight
1.19:1 #28152F on #292B2C · Not suitable for text

Recommended text on highlight

The original text has low contrast (1.19:1). This example uses Mist Card (#EDEDEA) from the same palette instead of #28152F on #292B2C, improving contrast to 12.13:1. This meets WCAG AA for normal text.

Text on accent
10.62:1 #28152F on #D7C7E2 · AAA normal text

Contrast is calculated for these specific pairs. Large text means at least 24 px regular or about 18.7 px bold. Check every pairing in your final design.

IMAGINE THE POSSIBILITIES

One palette.
A world of possibilities.

See how these five colors come together in a website, a poster, a brand, and a presentation. Explore a different palette and watch the mood change.

ONDA STUDIO / WEB PREVIEW
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INDEPENDENT STUDIO · SEOUL

Design with
today’s color.

A little space for fresh ideas. A considered palette for whatever comes next.

Prepared design previews, recolored with this palette.

COLOR NOTE

Route Violet on Tunnel Mouth is 1.19:1 and fails the 4.5:1 normal-text and 3:1 large-text thresholds; use Mist Card at 12.13:1 or Far Ridge at 8.91:1. Mist and ridge cards need Route Violet outlines against Valley Layer when their boundaries matter.

From inspiration to creation

Your next idea,
in these colors.

Add a considered color direction to the design you already have in mind. Your layout and instructions stay yours.

  1. Write your design request.
  2. Choose a color guide and copy it.
  3. Paste it after your request.
  4. Review the result and check readability.

Try it in the design or AI tool you already use. 

[Color guide — coloring.today / the-train-leaves-the-valley-tunnel]
Apply this palette to the design requested above. Preserve the requested layout, content, and interactions. If an explicit requirement conflicts with this color guide, identify the conflict instead of silently overriding it.

Text: Route Violet #28152F
Primary: Mist Card #EDEDEA
Highlight: Tunnel Mouth #292B2C
Accent: Far Ridge #D7C7E2
Background: Valley Layer #7C9676

Mood: A dark train entrance opening onto green slopes, pale mist, and a distant violet ridge
Suggested uses: Travel services
Application note: Use Valley Layer for the field; Route Violet text on Valley Layer, Mist Card, and Far Ridge; and Mist Card or Far Ridge text on Tunnel Mouth. Use Mist Card for route details, Tunnel Mouth for the train entrance and active departure, and Far Ridge for secondary map areas. Outline pale cards in Route Violet and label every route state.
Avoid: Route Violet on Tunnel Mouth is 1.19:1 and fails the 4.5:1 normal-text and 3:1 large-text thresholds; use Mist Card at 12.13:1 or Far Ridge at 8.91:1. Mist and ridge cards need Route Violet outlines against Valley Layer when their boundaries matter.
Use approximately 57% background, 29% primary, and 14% highlight across large surfaces. These ratios are a starting point, not a rigid rule. Use text and accent colors according to their roles.

Keep the original HEX values. Choose readable text/background pairings without silently changing the palette. Do not introduce unrelated colors.

[Color guide — coloring.today / the-train-leaves-the-valley-tunnel]
Apply this palette to the design requested above. Preserve the requested layout, content, and interactions. If an explicit requirement conflicts with this color guide, identify the conflict instead of silently overriding it.

Text: Route Violet #28152F
Primary: Mist Card #EDEDEA
Highlight: Tunnel Mouth #292B2C
Accent: Far Ridge #D7C7E2
Background: Valley Layer #7C9676

Mood: A dark train entrance opening onto green slopes, pale mist, and a distant violet ridge
Suggested uses: Travel services
Application note: Use Valley Layer for the field; Route Violet text on Valley Layer, Mist Card, and Far Ridge; and Mist Card or Far Ridge text on Tunnel Mouth. Use Mist Card for route details, Tunnel Mouth for the train entrance and active departure, and Far Ridge for secondary map areas. Outline pale cards in Route Violet and label every route state.
Avoid: Route Violet on Tunnel Mouth is 1.19:1 and fails the 4.5:1 normal-text and 3:1 large-text thresholds; use Mist Card at 12.13:1 or Far Ridge at 8.91:1. Mist and ridge cards need Route Violet outlines against Valley Layer when their boundaries matter.
Use approximately 57% background, 29% primary, and 14% highlight across large surfaces. These ratios are a starting point, not a rigid rule. Use text and accent colors according to their roles.

Use these semantic tokens consistently. Keep the original HEX values.
:root {
  --color-text: #28152F;
  --color-primary: #EDEDEA;
  --color-highlight: #292B2C;
  --color-accent: #D7C7E2;
  --color-background: #7C9676;
}
Background is the canvas, text is readable copy, primary is a key surface, highlight draws attention, and accent adds small secondary details.

[Color guide — coloring.today / the-train-leaves-the-valley-tunnel]
Apply this palette to the design requested above. Preserve the requested layout, content, and interactions. If an explicit requirement conflicts with this color guide, identify the conflict instead of silently overriding it.

Text: Route Violet #28152F
Primary: Mist Card #EDEDEA
Highlight: Tunnel Mouth #292B2C
Accent: Far Ridge #D7C7E2
Background: Valley Layer #7C9676

Mood: A dark train entrance opening onto green slopes, pale mist, and a distant violet ridge
Suggested uses: Travel services
Application note: Use Valley Layer for the field; Route Violet text on Valley Layer, Mist Card, and Far Ridge; and Mist Card or Far Ridge text on Tunnel Mouth. Use Mist Card for route details, Tunnel Mouth for the train entrance and active departure, and Far Ridge for secondary map areas. Outline pale cards in Route Violet and label every route state.
Avoid: Route Violet on Tunnel Mouth is 1.19:1 and fails the 4.5:1 normal-text and 3:1 large-text thresholds; use Mist Card at 12.13:1 or Far Ridge at 8.91:1. Mist and ridge cards need Route Violet outlines against Valley Layer when their boundaries matter.
Use approximately 57% background, 29% primary, and 14% highlight across large surfaces. These ratios are a starting point, not a rigid rule. Use text and accent colors according to their roles.

Text/background contrast: 5.23:1. This is one measured pair, not a guarantee for the whole palette. Check every actual text/background pairing against WCAG AA. Prefer readable combinations from the original colors, keep visible keyboard focus, and never communicate state through color alone. If no original pairing meets the requirement, propose a separately labeled derived color with its original HEX, proposed HEX, purpose and measured contrast. Never overwrite the source palette.

This guide preserves the original HEX values. Review the output before using it.

Bring it into your project

Five colors.
Ready to use.

Copy the same colors as semantic CSS variables. Every preview and prompt on this page uses this palette. 

:root {
  --color-text: #28152F;
  --color-primary: #EDEDEA;
  --color-highlight: #292B2C;
  --color-accent: #D7C7E2;
  --color-background: #7C9676;
}

A little more inspiration.

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