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A little color. A new perspective.

Published Aug 6, 2026

A Violet Index for Small Tasks

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

A calm checklist palette with a periwinkle canvas, violet sections, peach notes, blue-gray completion marks, and dark readable ink.

The feeling

A light periwinkle checklist ordered by violet sections and quiet status colors

Explore this palette ↓

The mood

Periwinkle gives a personal checklist a light, settled canvas. Deep violet organizes the sections, while peach appears only where a short note needs attention and blue gray records completed items without taking over the page.

How to use it

Write task names, section summaries, and ordinary controls in Night Ink on Periwinkle Sheet at 13.21:1. Use Violet Index for section headers and the active-item bar, reversing the labels to Periwinkle Sheet at 7.79:1. Pair the active color with a pointer and the words “Active item.”

Peach Note holds brief task notes with Night Ink at 10.00:1. Give each peach note a Violet Index rule: violet passes against Peach Note at 5.89:1 and Periwinkle Sheet at 7.79:1. Completion Blue fills compact completion rows with Night Ink check marks and labels at 4.82:1. When a blue-gray row meets the canvas, use a Night Ink separator, which passes against Completion Blue at 4.82:1 and the canvas at 13.21:1. Use 54% periwinkle, 30% violet, and 16% peach, keeping blue gray for completion details.

What to watch

Night Ink fails on Violet Index at 1.70:1, so dark text must never sit inside violet sections. Peach Note and Periwinkle Sheet reach only 1.32:1, and Completion Blue and the canvas reach 2.74:1; both need their specified edges. Violet Index and Completion Blue are 2.84:1 apart, while peach and blue gray are 2.07:1, so do not use those pairs as unlabeled boundaries.

A considered balance

Make room for
the right colors.

Design a personal checklist on Periwinkle Sheet with Night Ink task labels. Use Violet Index for sections and the active-item bar with light labels. Place brief notes on Peach Note with violet rules. Use Completion Blue for checked rows with a dark separator and visible Completed wording.

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.

54 Base
30 Main
16 Point
Periwinkle Sheet

Background & breathing room

Violet Index

Cards, graphics & sections

Peach Note

Buttons & key signals

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

Text on background
13.21:1 #171722 on #D9DDF5 · AAA normal text
Text on primary
1.70:1 #171722 on #4E2A87 · Not suitable for text

Recommended text on primary

The original text has low contrast (1.70:1). This example uses Periwinkle Sheet (#D9DDF5) from the same palette instead of #171722 on #4E2A87, improving contrast to 7.79:1. This meets WCAG AA for normal text.

Text on highlight
10.00:1 #171722 on #F0B59F · AAA normal text
Text on accent
4.82:1 #171722 on #78869E · AA 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

Use Night Ink on Periwinkle Sheet at 13.21:1, Peach Note at 10.00:1, and Completion Blue at 4.82:1. Never use Night Ink on Violet Index at 1.70:1; reverse to Periwinkle Sheet at 7.79:1. Edge peach notes in violet and blue-gray rows in Night Ink.

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 / a-violet-index-for-small-tasks]
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: Night Ink #171722
Primary: Violet Index #4E2A87
Highlight: Peach Note #F0B59F
Accent: Completion Blue #78869E
Background: Periwinkle Sheet #D9DDF5

Mood: A light periwinkle checklist ordered by violet sections and quiet status colors
Suggested uses: Productivity apps
Application note: Design a personal checklist on Periwinkle Sheet with Night Ink task labels. Use Violet Index for sections and the active-item bar with light labels. Place brief notes on Peach Note with violet rules. Use Completion Blue for checked rows with a dark separator and visible Completed wording.
Avoid: Use Night Ink on Periwinkle Sheet at 13.21:1, Peach Note at 10.00:1, and Completion Blue at 4.82:1. Never use Night Ink on Violet Index at 1.70:1; reverse to Periwinkle Sheet at 7.79:1. Edge peach notes in violet and blue-gray rows in Night Ink.
Use approximately 54% background, 30% primary, and 16% 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 / a-violet-index-for-small-tasks]
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: Night Ink #171722
Primary: Violet Index #4E2A87
Highlight: Peach Note #F0B59F
Accent: Completion Blue #78869E
Background: Periwinkle Sheet #D9DDF5

Mood: A light periwinkle checklist ordered by violet sections and quiet status colors
Suggested uses: Productivity apps
Application note: Design a personal checklist on Periwinkle Sheet with Night Ink task labels. Use Violet Index for sections and the active-item bar with light labels. Place brief notes on Peach Note with violet rules. Use Completion Blue for checked rows with a dark separator and visible Completed wording.
Avoid: Use Night Ink on Periwinkle Sheet at 13.21:1, Peach Note at 10.00:1, and Completion Blue at 4.82:1. Never use Night Ink on Violet Index at 1.70:1; reverse to Periwinkle Sheet at 7.79:1. Edge peach notes in violet and blue-gray rows in Night Ink.
Use approximately 54% background, 30% primary, and 16% 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: #171722;
  --color-primary: #4E2A87;
  --color-highlight: #F0B59F;
  --color-accent: #78869E;
  --color-background: #D9DDF5;
}
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 / a-violet-index-for-small-tasks]
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: Night Ink #171722
Primary: Violet Index #4E2A87
Highlight: Peach Note #F0B59F
Accent: Completion Blue #78869E
Background: Periwinkle Sheet #D9DDF5

Mood: A light periwinkle checklist ordered by violet sections and quiet status colors
Suggested uses: Productivity apps
Application note: Design a personal checklist on Periwinkle Sheet with Night Ink task labels. Use Violet Index for sections and the active-item bar with light labels. Place brief notes on Peach Note with violet rules. Use Completion Blue for checked rows with a dark separator and visible Completed wording.
Avoid: Use Night Ink on Periwinkle Sheet at 13.21:1, Peach Note at 10.00:1, and Completion Blue at 4.82:1. Never use Night Ink on Violet Index at 1.70:1; reverse to Periwinkle Sheet at 7.79:1. Edge peach notes in violet and blue-gray rows in Night Ink.
Use approximately 54% background, 30% primary, and 16% 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: 13.21:1. 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: #171722;
  --color-primary: #4E2A87;
  --color-highlight: #F0B59F;
  --color-accent: #78869E;
  --color-background: #D9DDF5;
}

A little more inspiration.

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