← Back to Editor

#646664 · #F6F9FF · #D3E3EC · #878089

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

Scene Recommendations Scene Recommendations

Emotion EMOTION

AiryCleanCool

Industry INDUSTRY

HealthcareSaaS

UI Context UI CONTEXT

WorkspaceReadingData Visualization

Color Details Color Details

#646664

Ink Gray · DimGray · Charcoal

HEX
#646664
RGB
rgb(100, 102, 100)
HSL
hsl(120, 1%, 40%)
HSB
hsb(120, 2%, 40%)
CMYK
cmyk(2%, 0%, 2%, 60%)
Oklch
oklch(50.8% 0.004 145.5)

Traditional「Ink Gray」· Paint「Charcoal」· Creative Midnight Shadow

#F6F9FF

Azure · Snow · Sky Blue

HEX
#F6F9FF
RGB
rgb(246, 249, 255)
HSL
hsl(220, 100%, 98%)
HSB
hsb(220, 4%, 100%)
CMYK
cmyk(4%, 2%, 0%, 0%)
Oklch
oklch(98.2% 0.009 264.5)

Traditional「Azure」· Paint「Sky Blue」· Creative Twilight Haze

#D3E3EC

Sky Blue · Lavender · Sky Blue

HEX
#D3E3EC
RGB
rgb(211, 227, 236)
HSL
hsl(202, 40%, 88%)
HSB
hsb(202, 11%, 93%)
CMYK
cmyk(11%, 4%, 0%, 7%)
Oklch
oklch(90.7% 0.021 232.1)

Traditional「Sky Blue」· Paint「Sky Blue」· Creative Twilight Haze

#878089

Ash · Gray · Warm Gray

HEX
#878089
RGB
rgb(135, 128, 137)
HSL
hsl(287, 4%, 52%)
HSB
hsb(287, 7%, 54%)
CMYK
cmyk(1%, 7%, 0%, 46%)
Oklch
oklch(60.9% 0.016 318.7)

Traditional「Ash」· Paint「Warm Gray」· Creative Urban Concrete

Color Harmonies Color Harmonies

Based on color wheel theory, calculated from primary color

Complementary

646664
676567

Analogous

666765
646664
656766

Triadic

646664
656567
676565

Split-Comp.

646664
666567
676566

Tetradic

646664
656667
676567
676665

Contrast Matrix WCAG 2.1 Contrast

646664
F6F9FF
D3E3EC
878089
—
5.5
AA
4.4
AA Large
1.5
Fail
5.5
AA
—
1.2
Fail
3.6
AA Large
4.4
AA Large
1.2
Fail
—
2.9
Fail
1.5
Fail
3.6
AA Large
2.9
Fail
—
White BG
5.8AA
1.1Fail
1.3Fail
3.8AA Large
Black BG
3.6AA Large
19.9AAA
16.0AAA
5.5AA

Color Blindness Simulation Color Blindness Simulation

Protanopia

656564
F7F7FE
DADAEA
848487

Deuteranopia

656565
F7F7FD
D9D8E9
848586

Tritanopia

646565
F6FCFC
D4E8E8
878585

Achromatopsia

656565
F9F9F9
DFDFDF
838383

Shades & Tints Shades & Tints

#646664

Dark
Light

#F6F9FF

Dark
Light

#D3E3EC

Dark
Light

Code Snippets Code Snippets

CSS Custom Properties

:root {
  --color-1: #646664;
  --color-2: #f6f9ff;
  --color-3: #d3e3ec;
  --color-4: #878089;
}

SCSS

$color-1: #646664;
$color-2: #f6f9ff;
$color-3: #d3e3ec;
$color-4: #878089;

TAILWIND

colors: {
  'brand-1': '#646664',
  'brand-2': '#f6f9ff',
  'brand-3': '#d3e3ec',
  'brand-4': '#878089',
}

RGB Array

[100, 102, 100], [246, 249, 255], [211, 227, 236], [135, 128, 137]

FAQ FAQ

What scenarios is this 4-color palette suitable for?

This general-style palette of #646664, #F6F9FF, #D3E3EC, #878089 is ideal for: health products, baby brands, fresh-style blogs, 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: #646664; --color-2: #f6f9ff; --color-3: #d3e3ec; --color-4: #878089. 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?

Light tones suit backgrounds; use dark colors for body text. Mid-tones work for card backgrounds or dividers to add depth. 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