Scene Recommendations Scene Recommendations
Emotion EMOTION
Industry INDUSTRY
UI Context UI CONTEXT
Color Details Color Details
#FF0000
Vermilion · Red · Passion Red
Traditional「Vermilion」· Paint「Passion Red」· Creative Blush Sunrise
#FFFFFF
Moonlight White · White · Cloud White
Traditional「Moonlight White」· Paint「Cloud White」· Creative Morning Mist
#000000
Ink Black · Black · Jet Black
Traditional「Ink Black」· Paint「Jet Black」· Creative Midnight Shadow
#CCFF00
Grass Green · Yellow · Olive Green
Traditional「Grass Green」· Paint「Olive Green」· Creative Blush Sunrise
Color Harmonies Color Harmonies
Based on color wheel theory, calculated from primary color
Complementary
Analogous
Triadic
Split-Comp.
Tetradic
Contrast Matrix WCAG 2.1 Contrast
FF0000 | FFFFFF | 000000 | CCFF00 | |
|---|---|---|---|---|
| — | 4.0 AA Large | 5.3 AA | 3.4 AA Large | |
4.0 AA Large | — | 21.0 AAA | 1.2 Fail | |
5.3 AA | 21.0 AAA | — | 17.9 AAA | |
3.4 AA Large | 1.2 Fail | 17.9 AAA | — |
Color Blindness Simulation Color Blindness Simulation
Protanopia
Deuteranopia
Tritanopia
Achromatopsia
Shades & Tints Shades & Tints
#FF0000
#FFFFFF
#000000
Code Snippets Code Snippets
CSS Custom Properties
:root {
--color-1: #ff0000;
--color-2: #ffffff;
--color-3: #000000;
--color-4: #ccff00;
}SCSS
$color-1: #ff0000; $color-2: #ffffff; $color-3: #000000; $color-4: #ccff00;
TAILWIND
colors: {
'brand-1': '#ff0000',
'brand-2': '#ffffff',
'brand-3': '#000000',
'brand-4': '#ccff00',
}RGB Array
[255, 0, 0], [255, 255, 255], [0, 0, 0], [204, 255, 0]
FAQ FAQ
What scenarios is this 4-color palette suitable for?
This general-style palette of #FF0000, #FFFFFF, #000000, #CCFF00 is ideal for: infographics, data visualization, accessible design. High contrast ensures clear visual hierarchy and readability. It is a balanced and harmonious choice among 4-color palettes.
How to use this palette in CSS or frontend projects?
Copy the CSS variables directly: --color-1: #ff0000; --color-2: #ffffff; --color-3: #000000; --color-4: #ccff00. 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. 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 tech, SaaS, healthcare, eco industries. Click "AI Analysis" in the editor for more detailed brand color suggestions.
Generated by LangColor online color tool · Breaking the barrier between language and color