Charcoal

#303F4F

Blue

Color Codes

All color formats for development

HEX
#303F4F
RGB
rgb(48, 63, 79)
HSL
hsl(211, 24%, 25%)
OKLCH
oklch(0.361 0.034 250.4)
CMYK
cmyk(39%, 20%, 0%, 69%)

Accessibility

WCAG contrast compliance

On White Background

10.77:1

AA AAA

On Black Background

1.95:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F6F7
100
#E9ED
200
#D6DE
300
#B6C4
400
#90A5
500
#718B
600
#556F
700
#4459
800
#303F
900
#1F28
950
#1319

Shades

Darker variations

1#2C3947
2#27333F
3#222C37
4#1D262F
5#182028
6#131920
7#0F1318
8#0A0D10
9#050608

Tints

Lighter variations

1#3F5267
2#4E657E
3#5C7896
4#718BA8
5#889FB6
6#A0B2C5
7#B8C5D3
8#D0D8E2
9#E7ECF0

Tones

Muted variations

1#323F4E
2#343F4C
3#353F4A
4#373F49
5#383F47
6#3A4046
7#3B4044
8#3D4043
9#3E4041

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F6F7
#F6F7F9
BackgroundsSubtle highlightsCard backgrounds
100
E9ED
#E9EDF1
Light backgroundsTable row hoverSkeleton loading
200
D6DE
#D6DEE6
Secondary backgroundsInput backgroundsDividers
300
B6C4
#B6C4D2
BordersInactive statesPlaceholder text
400
90A5
#90A5BB
Disabled statesSecondary iconsMuted text
500
718B
#718BA8
Primary brand colorCTAsActive elementsLinks
600
556F
#556F8B
Hover statesFocus ringsPrimary buttons hover
700
4459
#44596F
Active/pressed statesDark mode accentsSecondary text
800
303F
#303F4F
Text on light backgroundsHeadingsStrong borders
900
1F28
#1F2833
Primary textHigh emphasis contentDark headings
950
1319
#131920
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --charcoal-50: #F6F7F9;
  --charcoal-100: #E9EDF1;
  --charcoal-200: #D6DEE6;
  --charcoal-300: #B6C4D2;
  --charcoal-400: #90A5BB;
  --charcoal-500: #718BA8;
  --charcoal-600: #556F8B;
  --charcoal-700: #44596F;
  --charcoal-800: #303F4F;
  --charcoal-900: #1F2833;
  --charcoal-950: #131920;
}
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