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#FF9900 · #330033 · #663366 · #FFFFFF

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

Scene Recommendations Scene Recommendations

Emotion EMOTION

HarmoniousVersatileWarm

Industry INDUSTRY

E-commerceBusiness

UI Context UI CONTEXT

Web PageComponent LibraryData Visualization

Color Details Color Details

#FF9900

Ochre · Orange · Amber Brown

HEX
#FF9900
RGB
rgb(255, 153, 0)
HSL
hsl(36, 100%, 50%)
HSB
hsb(36, 100%, 100%)
CMYK
cmyk(0%, 40%, 100%, 0%)
Oklch
oklch(77.2% 0.174 64.6)

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

#330033

Rose Purple · MidnightBlue · Dark Purple

HEX
#330033
RGB
rgb(51, 0, 51)
HSL
hsl(300, 100%, 10%)
HSB
hsb(300, 100%, 20%)
CMYK
cmyk(0%, 100%, 0%, 80%)
Oklch
oklch(22.5% 0.104 328.4)

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

#663366

Rose Purple · DarkSlateBlue · Eggplant

HEX
#663366
RGB
rgb(102, 51, 102)
HSL
hsl(300, 33%, 30%)
HSB
hsb(300, 50%, 40%)
CMYK
cmyk(0%, 50%, 0%, 60%)
Oklch
oklch(40.8% 0.102 327.3)

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

#FFFFFF

Moonlight White · White · Cloud White

HEX
#FFFFFF
RGB
rgb(255, 255, 255)
HSL
hsl(0, 0%, 100%)
HSB
hsb(0, 0%, 100%)
CMYK
cmyk(0%, 0%, 0%, 0%)
Oklch
oklch(100.0% 0.000 89.9)

Traditional「Moonlight White」· Paint「Cloud White」· Creative Morning Mist

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

FF9900
0066FF

Analogous

FF1900
FF9900
E5FF00

Triadic

FF9900
00FF99
9900FF

Split-Comp.

FF9900
00E6FF
1900FF

Tetradic

FF9900
00FF19
0066FF
FF00E6

Contrast Matrix WCAG 2.1 Contrast

FF9900
330033
663366
FFFFFF
—
8.3
AAA
4.4
AA Large
2.1
Fail
8.3
AAA
—
1.9
Fail
17.7
AAA
4.4
AA Large
1.9
Fail
—
9.4
AAA
2.1
Fail
17.7
AAA
9.4
AAA
—
White BG
2.1Fail
17.7AAA
9.4AAA
1.0Fail
Black BG
9.8AAA
1.2Fail
2.2Fail
21.0AAA

Color Blindness Simulation Color Blindness Simulation

Protanopia

D3D225
1D1C27
504F5A
FFFFFF

Deuteranopia

D9E02E
202424
535757
FFFFFF

Tritanopia

FA4249
301D1B
63504E
FFFFFF

Achromatopsia

A6A6A6
151515
484848
FFFFFF

Shades & Tints Shades & Tints

#FF9900

Dark
Light

#330033

Dark
Light

#663366

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #ff9900;
  --color-2: #330033;
  --color-3: #663366;
  --color-4: #ffffff;
}

SCSS

$color-1: #ff9900;
$color-2: #330033;
$color-3: #663366;
$color-4: #ffffff;

TAILWIND

colors: {
  'brand-1': '#ff9900',
  'brand-2': '#330033',
  'brand-3': '#663366',
  'brand-4': '#ffffff',
}

RGB Array

[255, 153, 0], [51, 0, 51], [102, 51, 102], [255, 255, 255]

FAQ FAQ

What scenarios is this 4-color palette suitable for?

This general-style palette of #FF9900, #330033, #663366, #FFFFFF 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: #ff9900; --color-2: #330033; --color-3: #663366; --color-4: #ffffff. 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.

🎨 Open this palette in Editor →

Generated by LangColor online color tool · Breaking the barrier between language and color