← Back to Editor

#DD1B1B · #FFE100 · #21A310 · #000000

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

Scene Recommendations Scene Recommendations

Emotion EMOTION

PassionateDynamicWarm

Industry INDUSTRY

EntertainmentFMCG

UI Context UI CONTEXT

Sale PromoSocial AppData Visualization

Color Details Color Details

#DD1B1B

Vermilion · Crimson · Passion Red

HEX
#DD1B1B
RGB
rgb(221, 27, 27)
HSL
hsl(0, 78%, 49%)
HSB
hsb(0, 88%, 87%)
CMYK
cmyk(0%, 88%, 88%, 13%)
Oklch
oklch(57.2% 0.222 28.1)

TraditionalVermilion」· PaintPassion Red」· Creative Blush Sunrise

#FFE100

Autumn Sage · Gold · Honey Gold

HEX
#FFE100
RGB
rgb(255, 225, 0)
HSL
hsl(53, 100%, 50%)
HSB
hsb(53, 100%, 100%)
CMYK
cmyk(0%, 12%, 100%, 0%)
Oklch
oklch(90.7% 0.188 99.5)

TraditionalAutumn Sage」· PaintHoney Gold」· Creative Blush Sunrise

#21A310

Pine Green · ForestGreen · Forest Green

HEX
#21A310
RGB
rgb(33, 163, 16)
HSL
hsl(113, 82%, 35%)
HSB
hsb(113, 90%, 64%)
CMYK
cmyk(80%, 0%, 90%, 36%)
Oklch
oklch(62.4% 0.203 141.8)

TraditionalPine Green」· PaintForest Green」· Creative Blush Sunrise

#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)

TraditionalInk Black」· PaintJet Black」· Creative Midnight Shadow

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

DD1B1B
1BDEDE

Analogous

DE1B7D
DD1B1B
DE7D1B

Triadic

DD1B1B
1BDE1B
1B1BDE

Split-Comp.

DD1B1B
1BDE7D
1B7DDE

Tetradic

DD1B1B
7DDE1B
1BDEDE
7D1BDE

Contrast Matrix WCAG 2.1 Contrast

DD1B1B
FFE100
21A310
000000
3.8
AA Large
1.5
Fail
4.2
AA Large
3.8
AA Large
2.5
Fail
16.0
AAA
1.5
Fail
2.5
Fail
6.3
AA
4.2
AA Large
16.0
AAA
6.3
AA
White BG
4.9AA
1.3Fail
3.3AA Large
21.0AAA
Black BG
4.2AA Large
16.0AAA
6.3AA
1.0Fail

Color Blindness Simulation Color Blindness Simulation

Protanopia

89871B
F2F236
595A34
000000

Deuteranopia

94A31B
F4F644
52483C
000000

Tritanopia

D31B1B
FE616B
285056
000000

Achromatopsia

555555
D0D0D0
6B6B6B
000000

Shades & Tints Shades & Tints

#DD1B1B

Dark
Light

#FFE100

Dark
Light

#21A310

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #dd1b1b;
  --color-2: #ffe100;
  --color-3: #21a310;
  --color-4: #000000;
}

SCSS

$color-1: #dd1b1b;
$color-2: #ffe100;
$color-3: #21a310;
$color-4: #000000;

TAILWIND

colors: {
  'brand-1': '#dd1b1b',
  'brand-2': '#ffe100',
  'brand-3': '#21a310',
  'brand-4': '#000000',
}

RGB Array

[221, 27, 27], [255, 225, 0], [33, 163, 16], [0, 0, 0]

FAQ FAQ

What scenarios is this 4-color palette suitable for?

This general-style palette of #DD1B1B, #FFE100, #21A310, #000000 is ideal for: social media posters, mobile apps, e-commerce promos, tech websites, dark mode UIs, game UIs, infographics, data visualization, accessible design. Vivid colors effectively attract user attention. High contrast ensures clear visual hierarchy and readability. 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: #dd1b1b; --color-2: #ffe100; --color-3: #21a310; --color-4: #000000. 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 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