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#404040 · #447B82 · #2DE0DD · #3C7372 · #303030

dark

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

Scene Recommendations Scene Recommendations

Emotion EMOTION

ProfoundPremiumWarmCool

Industry INDUSTRY

FinanceLuxury

UI Context UI CONTEXT

Dark ThemeCorporate

Color Details Color Details

#404040

Dark Cyan · DarkSlateGray · Dark Stone

HEX
#404040
RGB
rgb(64, 64, 64)
HSL
hsl(0, 0%, 25%)
HSB
hsb(0, 0%, 25%)
CMYK
cmyk(0%, 0%, 0%, 75%)
Oklch
oklch(37.1% 0.000 89.9)

Traditional「Dark Cyan」· Paint「Dark Stone」· Creative Midnight Shadow

#447B82

Slate Blue · SlateGray · Mint Ice

HEX
#447B82
RGB
rgb(68, 123, 130)
HSL
hsl(187, 31%, 39%)
HSB
hsb(187, 48%, 51%)
CMYK
cmyk(48%, 5%, 0%, 49%)
Oklch
oklch(54.8% 0.059 206.2)

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

#2DE0DD

Mineral Blue · Turquoise · Lake Green

HEX
#2DE0DD
RGB
rgb(45, 224, 221)
HSL
hsl(179, 74%, 53%)
HSB
hsb(179, 80%, 88%)
CMYK
cmyk(80%, 0%, 1%, 12%)
Oklch
oklch(82.3% 0.134 193.1)

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

#3C7372

Mineral Blue · SeaGreen · Mint Ice

HEX
#3C7372
RGB
rgb(60, 115, 114)
HSL
hsl(179, 31%, 34%)
HSB
hsb(179, 48%, 45%)
CMYK
cmyk(48%, 0%, 1%, 55%)
Oklch
oklch(51.8% 0.058 194.0)

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

#303030

Dark Cyan · DarkSlateGray · Dark Stone

HEX
#303030
RGB
rgb(48, 48, 48)
HSL
hsl(0, 0%, 19%)
HSB
hsb(0, 0%, 19%)
CMYK
cmyk(0%, 0%, 0%, 81%)
Oklch
oklch(30.9% 0.000 89.9)

Traditional「Dark Cyan」· Paint「Dark Stone」· Creative Midnight Shadow

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

404040
404040

Analogous

404040
404040
404040

Triadic

404040
404040
404040

Split-Comp.

404040
404040
404040

Tetradic

404040
404040
404040
404040

Contrast Matrix WCAG 2.1 Contrast

404040
447B82
2DE0DD
3C7372
303030
—
2.2
Fail
6.3
AA
1.9
Fail
1.3
Fail
2.2
Fail
—
2.9
Fail
1.1
Fail
2.8
Fail
6.3
AA
2.9
Fail
—
3.3
AA Large
8.1
AAA
1.9
Fail
1.1
Fail
3.3
AA Large
—
2.4
Fail
1.3
Fail
2.8
Fail
8.1
AAA
2.4
Fail
—
White BG
10.4AAA
4.8AA
1.6Fail
5.4AA
13.2AAA
Black BG
2.0Fail
4.4AA Large
12.8AAA
3.9AA Large
1.6Fail

Color Blindness Simulation Color Blindness Simulation

Protanopia

404040
5C5C80
7B7CDE
545472
303030

Deuteranopia

404040
595580
7063DE
514D72
303030

Tritanopia

404040
477F7F
36DEDE
3F7272
303030

Achromatopsia

404040
6B6B6B
AAAAAA
626262
303030

Shades & Tints Shades & Tints

#404040

Dark
Light

#447B82

Dark
Light

#2DE0DD

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #404040;
  --color-2: #447b82;
  --color-3: #2de0dd;
  --color-4: #3c7372;
  --color-5: #303030;
}

SCSS

$color-1: #404040;
$color-2: #447b82;
$color-3: #2de0dd;
$color-4: #3c7372;
$color-5: #303030;

TAILWIND

colors: {
  'brand-1': '#404040',
  'brand-2': '#447b82',
  'brand-3': '#2de0dd',
  'brand-4': '#3c7372',
  'brand-5': '#303030',
}

RGB Array

[64, 64, 64], [68, 123, 130], [45, 224, 221], [60, 115, 114], [48, 48, 48]

FAQ FAQ

What scenarios is this 5-color palette suitable for?

This dark-style palette of #404040, #447B82, #2DE0DD, #3C7372, #303030 is ideal for: brand design, premium product pages, magazine layouts, tech websites, dark mode UIs, game UIs. Low-saturation colors convey a sophisticated, premium feel. 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: #404040; --color-2: #447b82; --color-3: #2de0dd; --color-4: #3c7372; --color-5: #303030. 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. 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 dark-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