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#FF0309 · #FEF973 · #83BEC9 · #B37811

A 4-color palette palette · Complete color analysis and application guide

Scene Recommendations Scene Recommendations

Emotion EMOTION

PassionateDynamicWarmCool

Industry INDUSTRY

EntertainmentFMCG

UI Context UI CONTEXT

Sale PromoSocial App

Color Details Color Details

#FF0309

Vermilion · Red · Passion Red

HEX
#FF0309
RGB
rgb(255, 3, 9)
HSL
hsl(359, 100%, 51%)
HSB
hsb(359, 99%, 100%)
CMYK
cmyk(0%, 99%, 96%, 0%)
Oklch
oklch(62.9% 0.257 28.8)

Traditional「Vermilion」· Paint「Passion Red」· Creative Blush Sunrise

#FEF973

Fresh Green · Khaki · Sunflower

HEX
#FEF973
RGB
rgb(254, 249, 115)
HSL
hsl(58, 99%, 72%)
HSB
hsb(58, 55%, 100%)
CMYK
cmyk(0%, 2%, 55%, 0%)
Oklch
oklch(96.1% 0.155 107.0)

Traditional「Fresh Green」· Paint「Sunflower」· Creative Lemon Fizz

#83BEC9

Sky Blue · SkyBlue · Lake Green

HEX
#83BEC9
RGB
rgb(131, 190, 201)
HSL
hsl(189, 39%, 65%)
HSB
hsb(189, 35%, 79%)
CMYK
cmyk(35%, 5%, 0%, 21%)
Oklch
oklch(76.5% 0.063 210.4)

Traditional「Sky Blue」· Paint「Lake Green」· Creative Arctic Pool

#B37811

Ochre · DarkGoldenRod · Amber Brown

HEX
#B37811
RGB
rgb(179, 120, 17)
HSL
hsl(38, 83%, 38%)
HSB
hsb(38, 91%, 70%)
CMYK
cmyk(0%, 33%, 91%, 30%)
Oklch
oklch(61.9% 0.127 73.5)

Traditional「Ochre」· Paint「Amber Brown」· Creative Blush Sunrise

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

FF0309
05FFFB

Analogous

FF0586
FF0309
FF7E05

Triadic

FF0309
09FF05
0509FF

Split-Comp.

FF0309
05FF7E
0586FF

Tetradic

FF0309
86FF05
05FFFB
7E05FF

Contrast Matrix WCAG 2.1 Contrast

FF0309
FEF973
83BEC9
B37811
—
3.6
AA Large
1.9
Fail
1.1
Fail
3.6
AA Large
—
1.9
Fail
3.4
AA Large
1.9
Fail
1.9
Fail
—
1.8
Fail
1.1
Fail
3.4
AA Large
1.8
Fail
—
White BG
4.0AA Large
1.1Fail
2.1Fail
3.7AA Large
Black BG
5.3AA
19.0AAA
10.2AAA
5.6AA

Color Blindness Simulation Color Blindness Simulation

Protanopia

929008
FCFC93
9D9DC6
99992A

Deuteranopia

A1B307
FCFD9B
9995C6
9DA130

Tritanopia

F20606
FEADB3
86C4C4
B03E42

Achromatopsia

4F4F4F
EBEBEB
AEAEAE
7E7E7E

Shades & Tints Shades & Tints

#FF0309

Dark
Light

#FEF973

Dark
Light

#83BEC9

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #ff0309;
  --color-2: #fef973;
  --color-3: #83bec9;
  --color-4: #b37811;
}

SCSS

$color-1: #ff0309;
$color-2: #fef973;
$color-3: #83bec9;
$color-4: #b37811;

TAILWIND

colors: {
  'brand-1': '#ff0309',
  'brand-2': '#fef973',
  'brand-3': '#83bec9',
  'brand-4': '#b37811',
}

RGB Array

[255, 3, 9], [254, 249, 115], [131, 190, 201], [179, 120, 17]

FAQ FAQ

What scenarios is this 4-color palette suitable for?

This general-style palette of #FF0309, #FEF973, #83BEC9, #B37811 is ideal for: social media posters, mobile apps, e-commerce promos. Vivid colors effectively attract user attention. It is a vibrant and energetic choice among 4-color palettes.

How to use this palette in CSS or frontend projects?

Copy the CSS variables directly: --color-1: #ff0309; --color-2: #fef973; --color-3: #83bec9; --color-4: #b37811. 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?

Medium-brightness colors suit brand primary and accent colors. Use the darkest for text, lightest for backgrounds, and mid-tones for emphasis. 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 general-style 4-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