Tide Marks at Harbor Station

[Color guide — coloring.today / tide-marks-at-harbor-station]
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: Logbook Plum #291D2D
Primary: Chart Paper #EDF2F4
Highlight: Deep Sounding #34547A
Accent: Rusted Marker #C67863
Background: Harbor Lavender #9A91B2

Mood: A quiet harbor station with lavender light, cool chart paper, deep blue soundings, and terracotta markers
Suggested uses: Data dashboards
Application note: Use Harbor Lavender for the dashboard frame and Logbook Plum for station names, timestamps, and summary values. Put plots and tables on Chart Paper, use Deep Sounding for the main line and dark panels with Chart Paper labels, and reserve Rusted Marker for selected observations with explicit shapes and labels.
Avoid: Do not use Logbook Plum on Deep Sounding; the contrast is about 2.06:1. Use Chart Paper on Deep Sounding instead, at about 6.90:1. Rusted Marker and Harbor Lavender are only about 1.13:1 apart, so selected points need outlines, shapes, and text labels. Do not distinguish chart series by color alone.
Use approximately 45% background, 40% primary, and 15% 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 / tide-marks-at-harbor-station]
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: Logbook Plum #291D2D
Primary: Chart Paper #EDF2F4
Highlight: Deep Sounding #34547A
Accent: Rusted Marker #C67863
Background: Harbor Lavender #9A91B2

Mood: A quiet harbor station with lavender light, cool chart paper, deep blue soundings, and terracotta markers
Suggested uses: Data dashboards
Application note: Use Harbor Lavender for the dashboard frame and Logbook Plum for station names, timestamps, and summary values. Put plots and tables on Chart Paper, use Deep Sounding for the main line and dark panels with Chart Paper labels, and reserve Rusted Marker for selected observations with explicit shapes and labels.
Avoid: Do not use Logbook Plum on Deep Sounding; the contrast is about 2.06:1. Use Chart Paper on Deep Sounding instead, at about 6.90:1. Rusted Marker and Harbor Lavender are only about 1.13:1 apart, so selected points need outlines, shapes, and text labels. Do not distinguish chart series by color alone.
Use approximately 45% background, 40% primary, and 15% 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: #291D2D;
  --color-primary: #EDF2F4;
  --color-highlight: #34547A;
  --color-accent: #C67863;
  --color-background: #9A91B2;
}
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 / tide-marks-at-harbor-station]
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: Logbook Plum #291D2D
Primary: Chart Paper #EDF2F4
Highlight: Deep Sounding #34547A
Accent: Rusted Marker #C67863
Background: Harbor Lavender #9A91B2

Mood: A quiet harbor station with lavender light, cool chart paper, deep blue soundings, and terracotta markers
Suggested uses: Data dashboards
Application note: Use Harbor Lavender for the dashboard frame and Logbook Plum for station names, timestamps, and summary values. Put plots and tables on Chart Paper, use Deep Sounding for the main line and dark panels with Chart Paper labels, and reserve Rusted Marker for selected observations with explicit shapes and labels.
Avoid: Do not use Logbook Plum on Deep Sounding; the contrast is about 2.06:1. Use Chart Paper on Deep Sounding instead, at about 6.90:1. Rusted Marker and Harbor Lavender are only about 1.13:1 apart, so selected points need outlines, shapes, and text labels. Do not distinguish chart series by color alone.
Use approximately 45% background, 40% primary, and 15% 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: 5.40:1. 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.