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#210D17 · #372840 · #424759 · #5A7070 · #D5DBC8

cool

A 5-color cool palette · Complete color analysis and application guide

Scene Recommendations Scene Recommendations

Emotion EMOTION

ProfoundPremiumWarmCool

Industry INDUSTRY

FinanceLuxury

UI Context UI CONTEXT

Dark ThemeCorporateData Visualization

Color Details Color Details

#210D17

Dark Violet · Black · Raspberry

HEX
#210D17
RGB
rgb(33, 13, 23)
HSL
hsl(330, 43%, 9%)
HSB
hsb(330, 61%, 13%)
CMYK
cmyk(0%, 61%, 30%, 87%)
Oklch
oklch(19.4% 0.038 349.9)

Traditional「Dark Violet」· Paint「Raspberry」· Creative Blush Sunrise

#372840

Dark Plum · DarkSlateGray · Dark Purple

HEX
#372840
RGB
rgb(55, 40, 64)
HSL
hsl(278, 23%, 20%)
HSB
hsb(278, 38%, 25%)
CMYK
cmyk(14%, 38%, 0%, 75%)
Oklch
oklch(30.5% 0.047 312.3)

Traditional「Dark Plum」· Paint「Dark Purple」· Creative Blush Sunrise

#424759

Indigo · DarkSlateGray · Prussian Blue

HEX
#424759
RGB
rgb(66, 71, 89)
HSL
hsl(227, 15%, 30%)
HSB
hsb(227, 26%, 35%)
CMYK
cmyk(26%, 20%, 0%, 65%)
Oklch
oklch(40.1% 0.031 272.8)

Traditional「Indigo」· Paint「Prussian Blue」· Creative Blush Sunrise

#5A7070

Slate Blue · DimGray · Mint Ice

HEX
#5A7070
RGB
rgb(90, 112, 112)
HSL
hsl(180, 11%, 40%)
HSB
hsb(180, 20%, 44%)
CMYK
cmyk(20%, 0%, 0%, 56%)
Oklch
oklch(52.7% 0.026 196.4)

Traditional「Slate Blue」· Paint「Mint Ice」· Creative Blush Sunrise

#D5DBC8

Willow Green · LightGray · Mint Green

HEX
#D5DBC8
RGB
rgb(213, 219, 200)
HSL
hsl(79, 21%, 82%)
HSB
hsb(79, 9%, 86%)
CMYK
cmyk(3%, 0%, 9%, 14%)
Oklch
oklch(88.2% 0.026 121.2)

Traditional「Willow Green」· Paint「Mint Green」· Creative Mint Breeze

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

210D17
0D2117

Analogous

210D21
210D17
210D0D

Triadic

210D17
17210D
0D1721

Split-Comp.

210D17
0D210D
0D2121

Tetradic

210D17
21210D
0D2117
0D0D21

Contrast Matrix WCAG 2.1 Contrast

210D17
372840
424759
5A7070
D5DBC8
—
1.4
Fail
2.0
Fail
3.5
AA Large
13.0
AAA
1.4
Fail
—
1.5
Fail
2.6
Fail
9.6
AAA
2.0
Fail
1.5
Fail
—
1.8
Fail
6.5
AA
3.5
AA Large
2.6
Fail
1.8
Fail
—
3.7
AA Large
13.0
AAA
9.6
AAA
6.5
AA
3.7
AA Large
—
White BG
18.5AAA
13.6AAA
9.2AAA
5.3AA
1.4Fail
Black BG
1.1Fail
1.5Fail
2.3Fail
4.0AA Large
14.8AAA

Color Blindness Simulation Color Blindness Simulation

Protanopia

181815
31303A
444455
646470
D8D8CD

Deuteranopia

1A1B14
313339
444454
626170
D7D7CE

Tritanopia

201312
363635
425150
5B7070
D5D0D1

Achromatopsia

141414
2F2F2F
484848
696969
D7D7D7

Shades & Tints Shades & Tints

#210D17

Dark
Light

#372840

Dark
Light

#424759

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #210d17;
  --color-2: #372840;
  --color-3: #424759;
  --color-4: #5a7070;
  --color-5: #d5dbc8;
}

SCSS

$color-1: #210d17;
$color-2: #372840;
$color-3: #424759;
$color-4: #5a7070;
$color-5: #d5dbc8;

TAILWIND

colors: {
  'brand-1': '#210d17',
  'brand-2': '#372840',
  'brand-3': '#424759',
  'brand-4': '#5a7070',
  'brand-5': '#d5dbc8',
}

RGB Array

[33, 13, 23], [55, 40, 64], [66, 71, 89], [90, 112, 112], [213, 219, 200]

FAQ FAQ

What scenarios is this 5-color palette suitable for?

This cool-style palette of #210D17, #372840, #424759, #5A7070, #D5DBC8 is ideal for: brand design, premium product pages, magazine layouts, tech websites, dark mode UIs, game UIs, infographics, data visualization, accessible design. Low-saturation colors convey a sophisticated, premium feel. High contrast ensures clear visual hierarchy and readability. It is a classic and elegant choice among 5-color palettes.

How to use this palette in CSS or frontend projects?

Copy the CSS variables directly: --color-1: #210d17; --color-2: #372840; --color-3: #424759; --color-4: #5a7070; --color-5: #d5dbc8. LangColor editor supports one-click export to CSS, SCSS, Tailwind, JSON and more. Click the "Export" button to choose your format.

What UI/UX design tips apply to this palette?

Dark tones work well as backgrounds; pair with light text for readability. Use the brightest color for CTA buttons and interactive elements. High-contrast palettes naturally meet WCAG accessibility standards. Use the "Contrast Matrix" tool in LangColor editor to check WCAG accessibility levels for every color pair.

Which industries or brands suit this palette?

This cool-style 5-color scheme is especially suited for finance, legal, luxury industries. Restrained colors convey professionalism and trust. Click "AI Analysis" in the editor for more detailed brand color suggestions.

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Generated by LangColor online color tool · Breaking the barrier between language and color