Charcoal

#284B57

Blue

Color Codes

All color formats for development

HEX
#284B57
RGB
rgb(40, 75, 87)
HSL
hsl(195, 37%, 25%)
OKLCH
oklch(0.392 0.045 222.3)
CMYK
cmyk(54%, 14%, 0%, 66%)

Accessibility

WCAG contrast compliance

On White Background

9.40:1

AA AAA

On Black Background

2.23:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F5F9
100
#E7F0
200
#D2E4
300
#AFCF
400
#85B6
500
#62A1
600
#4785
700
#386A
800
#284C
900
#1A30
950
#101E

Shades

Darker variations

1#24444F
2#203C46
3#1C353D
4#182D34
5#14262C
6#101E23
7#0C171A
8#080F11
9#040809

Tints

Lighter variations

1#346272
2#40798C
3#4C90A6
4#62A1B7
5#7CB1C3
6#96C1CF
7#B0D0DB
8#CBE0E7
9#E5EFF3

Tones

Muted variations

1#2B4A55
2#2D4953
3#2F4850
4#32474E
5#34464C
6#364449
7#394347
8#3B4244
9#3D4142

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F5F9
#F5F9FA
BackgroundsSubtle highlightsCard backgrounds
100
E7F0
#E7F0F4
Light backgroundsTable row hoverSkeleton loading
200
D2E4
#D2E4EA
Secondary backgroundsInput backgroundsDividers
300
AFCF
#AFCFDA
BordersInactive statesPlaceholder text
400
85B6
#85B6C7
Disabled statesSecondary iconsMuted text
500
62A1
#62A1B7
Primary brand colorCTAsActive elementsLinks
600
4785
#47859A
Hover statesFocus ringsPrimary buttons hover
700
386A
#386A7A
Active/pressed statesDark mode accentsSecondary text
800
284C
#284C57
Text on light backgroundsHeadingsStrong borders
900
1A30
#1A3038
Primary textHigh emphasis contentDark headings
950
101E
#101E23
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --charcoal-50: #F5F9FA;
  --charcoal-100: #E7F0F4;
  --charcoal-200: #D2E4EA;
  --charcoal-300: #AFCFDA;
  --charcoal-400: #85B6C7;
  --charcoal-500: #62A1B7;
  --charcoal-600: #47859A;
  --charcoal-700: #386A7A;
  --charcoal-800: #284C57;
  --charcoal-900: #1A3038;
  --charcoal-950: #101E23;
}
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