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#000000 · #223333 · #446655 · #66AA77 · #BBCC55

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

#000000

Ink Black · Black · Jet Black

HEX
#000000
RGB
rgb(0, 0, 0)
HSL
hsl(0, 0%, 0%)
HSB
hsb(0, 0%, 0%)
CMYK
cmyk(0%, 0%, 0%, 100%)
Oklch
oklch(0.0% 0.000 0.0)

Traditional「Ink Black」· Paint「Jet Black」· Creative Midnight Shadow

#223333

Slate Blue · DarkSlateGray · Peacock Green

HEX
#223333
RGB
rgb(34, 51, 51)
HSL
hsl(180, 20%, 17%)
HSB
hsb(180, 33%, 20%)
CMYK
cmyk(33%, 0%, 0%, 80%)
Oklch
oklch(30.6% 0.022 196.0)

Traditional「Slate Blue」· Paint「Peacock Green」· Creative Blush Sunrise

#446655

Mineral Blue · DarkSlateGray · Forest Green

HEX
#446655
RGB
rgb(68, 102, 85)
HSL
hsl(150, 20%, 33%)
HSB
hsb(150, 33%, 40%)
CMYK
cmyk(33%, 0%, 17%, 60%)
Oklch
oklch(47.9% 0.048 162.1)

Traditional「Mineral Blue」· Paint「Forest Green」· Creative Blush Sunrise

#66AA77

Celadon · CadetBlue · Olive Green

HEX
#66AA77
RGB
rgb(102, 170, 119)
HSL
hsl(135, 29%, 53%)
HSB
hsb(135, 40%, 67%)
CMYK
cmyk(40%, 0%, 30%, 33%)
Oklch
oklch(67.9% 0.103 150.9)

Traditional「Celadon」· Paint「Olive Green」· Creative Blush Sunrise

#BBCC55

Autumn Sage · BurlyWood · Sunflower

HEX
#BBCC55
RGB
rgb(187, 204, 85)
HSL
hsl(69, 54%, 57%)
HSB
hsb(69, 58%, 80%)
CMYK
cmyk(8%, 0%, 58%, 20%)
Oklch
oklch(80.9% 0.145 116.6)

Traditional「Autumn Sage」· Paint「Sunflower」· Creative Blush Sunrise

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

000000
000000

Analogous

000000
000000
000000

Triadic

000000
000000
000000

Split-Comp.

000000
000000
000000

Tetradic

000000
000000
000000
000000

Contrast Matrix WCAG 2.1 Contrast

000000
223333
446655
66AA77
BBCC55
—
1.6
Fail
3.3
AA Large
7.6
AAA
11.9
AAA
1.6
Fail
—
2.1
Fail
4.8
AA
7.5
AAA
3.3
AA Large
2.1
Fail
—
2.3
Fail
3.6
AA Large
7.6
AAA
4.8
AA
2.3
Fail
—
1.6
Fail
11.9
AAA
7.5
AAA
3.6
AA Large
1.6
Fail
—
White BG
21.0AAA
13.2AAA
6.4AA
2.8Fail
1.8Fail
Black BG
1.0Fail
1.6Fail
3.3AA Large
7.6AAA
11.9AAA

Color Blindness Simulation Color Blindness Simulation

Protanopia

000000
292A33
535359
838483
C2C372

Deuteranopia

000000
282733
514E5A
807A86
C1C079

Tritanopia

000000
233333
465C5D
698D8F
BC898E

Achromatopsia

000000
2E2E2E
5A5A5A
909090
B9B9B9

Shades & Tints Shades & Tints

#000000

Dark
Light

#223333

Dark
Light

#446655

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #000000;
  --color-2: #223333;
  --color-3: #446655;
  --color-4: #66aa77;
  --color-5: #bbcc55;
}

SCSS

$color-1: #000000;
$color-2: #223333;
$color-3: #446655;
$color-4: #66aa77;
$color-5: #bbcc55;

TAILWIND

colors: {
  'brand-1': '#000000',
  'brand-2': '#223333',
  'brand-3': '#446655',
  'brand-4': '#66aa77',
  'brand-5': '#bbcc55',
}

RGB Array

[0, 0, 0], [34, 51, 51], [68, 102, 85], [102, 170, 119], [187, 204, 85]

FAQ FAQ

What scenarios is this 5-color palette suitable for?

This cool-style palette of #000000, #223333, #446655, #66AA77, #BBCC55 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: #000000; --color-2: #223333; --color-3: #446655; --color-4: #66aa77; --color-5: #bbcc55. 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.

🎨 Open this palette in Editor →

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