Cobalt

#1B37C5

Blue

Color Codes

All color formats for development

HEX
#1B37C5
RGB
rgb(27, 55, 197)
HSL
hsl(230, 76%, 44%)
OKLCH
oklch(0.43 0.219 266.5)
CMYK
cmyk(86%, 72%, 0%, 23%)

Accessibility

WCAG contrast compliance

On White Background

8.75:1

AA AAA

On Black Background

2.40:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F3
100
#E0E4
200
#C5CD
300
#98A7
400
#6279
500
#3552
600
#1B37
700
#152C
800
#0F1F
900
#0A14
950
#060D

Shades

Darker variations

1#1832B2
2#162C9E
3#13278A
4#102176
5#0D1C63
6#0B164F
7#08113B
8#050B27
9#030614

Tints

Lighter variations

1#1E3EDF
2#3653E4
3#4F68E7
4#687EEA
5#8193EE
6#9AA9F1
7#B4BEF5
8#CDD4F8
9#E6E9FC

Tones

Muted variations

1#233DBD
2#2C43B4
3#3548AC
4#3D4EA3
5#46549B
6#4E5992
7#575F8A
8#5F6581
9#686B79

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F3
#F2F3FD
BackgroundsSubtle highlightsCard backgrounds
100
E0E4
#E0E4FB
Light backgroundsTable row hoverSkeleton loading
200
C5CD
#C5CDF7
Secondary backgroundsInput backgroundsDividers
300
98A7
#98A7F1
BordersInactive statesPlaceholder text
400
6279
#6279EA
Disabled statesSecondary iconsMuted text
500
3552
#3552E3
Primary brand colorCTAsActive elementsLinks
600
1B37
#1B37C5
Hover statesFocus ringsPrimary buttons hover
700
152C
#152C9D
Active/pressed statesDark mode accentsSecondary text
800
0F1F
#0F1F70
Text on light backgroundsHeadingsStrong borders
900
0A14
#0A1448
Primary textHigh emphasis contentDark headings
950
060D
#060D2D
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F3FD;
  --cobalt-100: #E0E4FB;
  --cobalt-200: #C5CDF7;
  --cobalt-300: #98A7F1;
  --cobalt-400: #6279EA;
  --cobalt-500: #3552E3;
  --cobalt-600: #1B37C5;
  --cobalt-700: #152C9D;
  --cobalt-800: #0F1F70;
  --cobalt-900: #0A1448;
  --cobalt-950: #060D2D;
}
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