Charcoal

#283957

Blue

Color Codes

All color formats for development

HEX
#283957
RGB
rgb(40, 57, 87)
HSL
hsl(218, 37%, 25%)
OKLCH
oklch(0.345 0.057 261.3)
CMYK
cmyk(54%, 34%, 0%, 66%)

Accessibility

WCAG contrast compliance

On White Background

11.58:1

AA AAA

On Black Background

1.81:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F5F7
100
#E7EB
200
#D2DB
300
#AFBF
400
#859D
500
#6281
600
#4765
700
#3850
800
#2839
900
#1A25
950
#1017

Shades

Darker variations

1#24344F
2#202E46
3#1C283D
4#182234
5#141D2C
6#101723
7#0C111A
8#080B11
9#040609

Tints

Lighter variations

1#344B72
2#405C8C
3#4C6DA6
4#6281B7
5#7C96C3
6#96ABCF
7#B0C0DB
8#CBD5E7
9#E5EAF3

Tones

Muted variations

1#2B3A55
2#2D3B53
3#2F3B50
4#323C4E
5#343D4C
6#363D49
7#393E47
8#3B3E44
9#3D3F42

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F5F7
#F5F7FA
BackgroundsSubtle highlightsCard backgrounds
100
E7EB
#E7EBF4
Light backgroundsTable row hoverSkeleton loading
200
D2DB
#D2DBEA
Secondary backgroundsInput backgroundsDividers
300
AFBF
#AFBFDA
BordersInactive statesPlaceholder text
400
859D
#859DC7
Disabled statesSecondary iconsMuted text
500
6281
#6281B7
Primary brand colorCTAsActive elementsLinks
600
4765
#47659A
Hover statesFocus ringsPrimary buttons hover
700
3850
#38507A
Active/pressed statesDark mode accentsSecondary text
800
2839
#283957
Text on light backgroundsHeadingsStrong borders
900
1A25
#1A2538
Primary textHigh emphasis contentDark headings
950
1017
#101723
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --charcoal-50: #F5F7FA;
  --charcoal-100: #E7EBF4;
  --charcoal-200: #D2DBEA;
  --charcoal-300: #AFBFDA;
  --charcoal-400: #859DC7;
  --charcoal-500: #6281B7;
  --charcoal-600: #47659A;
  --charcoal-700: #38507A;
  --charcoal-800: #283957;
  --charcoal-900: #1A2538;
  --charcoal-950: #101723;
}
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