Charcoal

#15303D

Blue

Color Codes

All color formats for development

HEX
#15303D
RGB
rgb(21, 48, 61)
HSL
hsl(200, 49%, 16%)
OKLCH
oklch(0.294 0.041 231.2)
CMYK
cmyk(66%, 21%, 0%, 76%)

Accessibility

WCAG contrast compliance

On White Background

13.80:1

AA AAA

On Black Background

1.52:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F4F9
100
#E4F0
200
#CEE3
300
#A8CE
400
#7AB4
500
#549F
600
#3983
700
#2E68
800
#214A
900
#152F
950
#0D1E

Shades

Darker variations

1#132B37
2#112631
3#0F212B
4#0C1C24
5#0A181E
6#081318
7#060E12
8#04090C
9#020506

Tints

Lighter variations

1#20485D
2#2B617D
3#367A9D
4#4193BC
5#5FA5C8
6#7FB7D3
7#9FC9DE
8#BFDBE9
9#DFEDF4

Tones

Muted variations

1#172F3B
2#192E39
3#1B2D37
4#1D2D35
5#1F2C33
6#212B31
7#232B2F
8#252A2D
9#27292B

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F4F9
#F4F9FB
BackgroundsSubtle highlightsCard backgrounds
100
E4F0
#E4F0F6
Light backgroundsTable row hoverSkeleton loading
200
CEE3
#CEE3EE
Secondary backgroundsInput backgroundsDividers
300
A8CE
#A8CEE1
BordersInactive statesPlaceholder text
400
7AB4
#7AB4D1
Disabled statesSecondary iconsMuted text
500
549F
#549FC4
Primary brand colorCTAsActive elementsLinks
600
3983
#3983A7
Hover statesFocus ringsPrimary buttons hover
700
2E68
#2E6885
Active/pressed statesDark mode accentsSecondary text
800
214A
#214A5F
Text on light backgroundsHeadingsStrong borders
900
152F
#152F3D
Primary textHigh emphasis contentDark headings
950
0D1E
#0D1E26
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --charcoal-50: #F4F9FB;
  --charcoal-100: #E4F0F6;
  --charcoal-200: #CEE3EE;
  --charcoal-300: #A8CEE1;
  --charcoal-400: #7AB4D1;
  --charcoal-500: #549FC4;
  --charcoal-600: #3983A7;
  --charcoal-700: #2E6885;
  --charcoal-800: #214A5F;
  --charcoal-900: #152F3D;
  --charcoal-950: #0D1E26;
}
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