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#2B4557 · #0033FF · #4800AD · #45077A · #36223B

cool

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

Scene Recommendations Scene Recommendations

Emotion EMOTION

PassionateDynamicCool

Industry INDUSTRY

EntertainmentFMCG

UI Context UI CONTEXT

Sale PromoSocial App

Color Details Color Details

#2B4557

Slate Blue · DarkSlateGray · Prussian Blue

HEX
#2B4557
RGB
rgb(43, 69, 87)
HSL
hsl(205, 34%, 25%)
HSB
hsb(205, 51%, 34%)
CMYK
cmyk(51%, 21%, 0%, 66%)
Oklch
oklch(37.7% 0.044 239.7)

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

#0033FF

Indigo · Blue · Navy Blue

HEX
#0033FF
RGB
rgb(0, 51, 255)
HSL
hsl(228, 100%, 50%)
HSB
hsb(228, 100%, 100%)
CMYK
cmyk(100%, 80%, 0%, 0%)
Oklch
oklch(48.5% 0.291 264.1)

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

#4800AD

Deep Indigo · DarkSlateBlue · Eggplant

HEX
#4800AD
RGB
rgb(72, 0, 173)
HSL
hsl(265, 100%, 34%)
HSB
hsb(265, 100%, 68%)
CMYK
cmyk(58%, 100%, 0%, 32%)
Oklch
oklch(38.2% 0.219 287.9)

Traditional「Deep Indigo」· Paint「Eggplant」· Creative Blush Sunrise

#45077A

Royal Purple · MidnightBlue · Eggplant

HEX
#45077A
RGB
rgb(69, 7, 122)
HSL
hsl(272, 89%, 25%)
HSB
hsb(272, 94%, 48%)
CMYK
cmyk(43%, 94%, 0%, 52%)
Oklch
oklch(32.7% 0.167 300.5)

Traditional「Royal Purple」· Paint「Eggplant」· Creative Blush Sunrise

#36223B

Dark Plum · DarkSlateGray · Dark Purple

HEX
#36223B
RGB
rgb(54, 34, 59)
HSL
hsl(288, 27%, 18%)
HSB
hsb(288, 42%, 23%)
CMYK
cmyk(8%, 42%, 0%, 77%)
Oklch
oklch(28.8% 0.052 319.4)

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

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

2B4557
553C2A

Analogous

2A5552
2B4557
2A2E55

Triadic

2B4557
552A43
43552A

Split-Comp.

2B4557
552A2E
55522A

Tetradic

2B4557
522A55
553C2A
2E552A

Contrast Matrix WCAG 2.1 Contrast

2B4557
0033FF
4800AD
45077A
36223B
—
1.4
Fail
1.1
Fail
1.3
Fail
1.4
Fail
1.4
Fail
—
1.6
Fail
1.9
Fail
2.0
Fail
1.1
Fail
1.6
Fail
—
1.2
Fail
1.3
Fail
1.3
Fail
1.9
Fail
1.2
Fail
—
1.1
Fail
1.4
Fail
2.0
Fail
1.3
Fail
1.1
Fail
—
White BG
10.0AAA
7.2AAA
11.2AAA
13.4AAA
14.5AAA
Black BG
2.1Fail
2.9Fail
1.9Fail
1.6Fail
1.4Fail

Color Blindness Simulation Color Blindness Simulation

Protanopia

363653
1617CE
292883
2A2A5E
2D2D35

Deuteranopia

353352
130FC2
2D3279
2E3257
2F3034

Tritanopia

2C4F4E
03A79E
44625B
424843
35302F

Achromatopsia

3F3F3F
3B3B3B
292929
272727
2B2B2B

Shades & Tints Shades & Tints

#2B4557

Dark
Light

#0033FF

Dark
Light

#4800AD

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #2b4557;
  --color-2: #0033ff;
  --color-3: #4800ad;
  --color-4: #45077a;
  --color-5: #36223b;
}

SCSS

$color-1: #2b4557;
$color-2: #0033ff;
$color-3: #4800ad;
$color-4: #45077a;
$color-5: #36223b;

TAILWIND

colors: {
  'brand-1': '#2b4557',
  'brand-2': '#0033ff',
  'brand-3': '#4800ad',
  'brand-4': '#45077a',
  'brand-5': '#36223b',
}

RGB Array

[43, 69, 87], [0, 51, 255], [72, 0, 173], [69, 7, 122], [54, 34, 59]

FAQ FAQ

What scenarios is this 5-color palette suitable for?

This cool-style palette of #2B4557, #0033FF, #4800AD, #45077A, #36223B is ideal for: social media posters, mobile apps, e-commerce promos, tech websites, dark mode UIs, game UIs. Vivid colors effectively attract user attention. It is a vibrant and energetic choice among 5-color palettes.

How to use this palette in CSS or frontend projects?

Copy the CSS variables directly: --color-1: #2b4557; --color-2: #0033ff; --color-3: #4800ad; --color-4: #45077a; --color-5: #36223b. 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 cool-style 5-color scheme is especially suited for food & dining, entertainment, kids education, social industries. Bold colors convey vitality and innovation. 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