Cobalt

#252FBB

Blue

Color Codes

All color formats for development

HEX
#252FBB
RGB
rgb(37, 47, 187)
HSL
hsl(236, 67%, 44%)
OKLCH
oklch(0.411 0.213 269.6)
CMYK
cmyk(80%, 75%, 0%, 27%)

Accessibility

WCAG contrast compliance

On White Background

9.53:1

AA AAA

On Black Background

2.20:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F3
100
#E1E3
200
#C8CB
300
#9DA2
400
#6A72
500
#3F4A
600
#252F
700
#1D25
800
#151B
900
#0D11
950
#080B

Shades

Darker variations

1#212AA9
2#1E2696
3#1A2183
4#161C70
5#13185E
6#0F134B
7#0B0E38
8#070925
9#040513

Tints

Lighter variations

1#2A35D3
2#404AD9
3#5861DE
4#7078E3
5#888EE7
6#A0A5EC
7#B7BBF1
8#CFD2F6
9#E7E8FA

Tones

Muted variations

1#2D36B4
2#343CAC
3#3C43A5
4#43499D
5#4B5096
6#52568E
7#5A5D87
8#61637F
9#696A78

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F3
#F2F3FC
BackgroundsSubtle highlightsCard backgrounds
100
E1E3
#E1E3F9
Light backgroundsTable row hoverSkeleton loading
200
C8CB
#C8CBF4
Secondary backgroundsInput backgroundsDividers
300
9DA2
#9DA2EC
BordersInactive statesPlaceholder text
400
6A72
#6A72E2
Disabled statesSecondary iconsMuted text
500
3F4A
#3F4AD9
Primary brand colorCTAsActive elementsLinks
600
252F
#252FBB
Hover statesFocus ringsPrimary buttons hover
700
1D25
#1D2595
Active/pressed statesDark mode accentsSecondary text
800
151B
#151B6A
Text on light backgroundsHeadingsStrong borders
900
0D11
#0D1144
Primary textHigh emphasis contentDark headings
950
080B
#080B2B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F3FC;
  --cobalt-100: #E1E3F9;
  --cobalt-200: #C8CBF4;
  --cobalt-300: #9DA2EC;
  --cobalt-400: #6A72E2;
  --cobalt-500: #3F4AD9;
  --cobalt-600: #252FBB;
  --cobalt-700: #1D2595;
  --cobalt-800: #151B6A;
  --cobalt-900: #0D1144;
  --cobalt-950: #080B2B;
}
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