Cobalt

#1D3F95

Blue

Color Codes

All color formats for development

HEX
#1D3F95
RGB
rgb(29, 63, 149)
HSL
hsl(223, 67%, 35%)
OKLCH
oklch(0.399 0.147 264.3)
CMYK
cmyk(81%, 58%, 0%, 42%)

Accessibility

WCAG contrast compliance

On White Background

9.56:1

AA AAA

On Black Background

2.20:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F5
100
#E1E8
200
#C8D4
300
#9DB3
400
#6A8C
500
#3F6B
600
#2550
700
#1D3F
800
#152D
900
#0D1D
950
#0812

Shades

Darker variations

1#1B3986
2#183377
3#152C68
4#122659
5#0F204B
6#0C193C
7#09132D
8#060D1E
9#03060F

Tints

Lighter variations

1#234BB1
2#2857CC
3#3D69D9
4#597FDE
5#7594E4
6#90A9E9
7#ACBFEF
8#C8D4F4
9#E3EAFA

Tones

Muted variations

1#23428F
2#294589
3#2F4783
4#354A7D
5#3B4C77
6#414F71
7#47516B
8#4D5465
9#53575F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F5
#F2F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E1E8
#E1E8F9
Light backgroundsTable row hoverSkeleton loading
200
C8D4
#C8D4F4
Secondary backgroundsInput backgroundsDividers
300
9DB3
#9DB3EC
BordersInactive statesPlaceholder text
400
6A8C
#6A8CE2
Disabled statesSecondary iconsMuted text
500
3F6B
#3F6BD9
Primary brand colorCTAsActive elementsLinks
600
2550
#2550BB
Hover statesFocus ringsPrimary buttons hover
700
1D3F
#1D3F95
Active/pressed statesDark mode accentsSecondary text
800
152D
#152D6A
Text on light backgroundsHeadingsStrong borders
900
0D1D
#0D1D44
Primary textHigh emphasis contentDark headings
950
0812
#08122B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F5FC;
  --cobalt-100: #E1E8F9;
  --cobalt-200: #C8D4F4;
  --cobalt-300: #9DB3EC;
  --cobalt-400: #6A8CE2;
  --cobalt-500: #3F6BD9;
  --cobalt-600: #2550BB;
  --cobalt-700: #1D3F95;
  --cobalt-800: #152D6A;
  --cobalt-900: #0D1D44;
  --cobalt-950: #08122B;
}
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