Cobalt

#252E8D

Blue

Color Codes

All color formats for development

HEX
#252E8D
RGB
rgb(37, 46, 141)
HSL
hsl(235, 58%, 35%)
OKLCH
oklch(0.362 0.155 271.7)
CMYK
cmyk(74%, 67%, 0%, 45%)

Accessibility

WCAG contrast compliance

On White Background

11.33:1

AA AAA

On Black Background

1.85:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F4
100
#E3E5
200
#CBCE
300
#A2A8
400
#727B
500
#4A55
600
#2F3A
700
#252E
800
#1B21
900
#1115
950
#0B0D

Shades

Darker variations

1#222A7F
2#1E2571
3#1A2063
4#161C55
5#131747
6#0F1238
7#0B0E2A
8#07091C
9#04050E

Tints

Lighter variations

1#2C37A7
2#333FC1
3#4853CE
4#626BD5
5#7C84DC
6#969DE3
7#B0B5EA
8#CBCEF1
9#E5E6F8

Tones

Muted variations

1#2B3288
2#303783
3#353B7D
4#3A3F78
5#3F4473
6#45486E
7#4A4C69
8#4F5164
9#54555E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F4
#F3F4FC
BackgroundsSubtle highlightsCard backgrounds
100
E3E5
#E3E5F8
Light backgroundsTable row hoverSkeleton loading
200
CBCE
#CBCEF1
Secondary backgroundsInput backgroundsDividers
300
A2A8
#A2A8E6
BordersInactive statesPlaceholder text
400
727B
#727BDA
Disabled statesSecondary iconsMuted text
500
4A55
#4A55CF
Primary brand colorCTAsActive elementsLinks
600
2F3A
#2F3AB1
Hover statesFocus ringsPrimary buttons hover
700
252E
#252E8D
Active/pressed statesDark mode accentsSecondary text
800
1B21
#1B2165
Text on light backgroundsHeadingsStrong borders
900
1115
#111540
Primary textHigh emphasis contentDark headings
950
0B0D
#0B0D28
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F4FC;
  --cobalt-100: #E3E5F8;
  --cobalt-200: #CBCEF1;
  --cobalt-300: #A2A8E6;
  --cobalt-400: #727BDA;
  --cobalt-500: #4A55CF;
  --cobalt-600: #2F3AB1;
  --cobalt-700: #252E8D;
  --cobalt-800: #1B2165;
  --cobalt-900: #111540;
  --cobalt-950: #0B0D28;
}
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