Cobalt

#252B8D

Blue

Color Codes

All color formats for development

HEX
#252B8D
RGB
rgb(37, 43, 141)
HSL
hsl(237, 58%, 35%)
OKLCH
oklch(0.356 0.159 272.4)
CMYK
cmyk(74%, 70%, 0%, 45%)

Accessibility

WCAG contrast compliance

On White Background

11.61:1

AA AAA

On Black Background

1.81:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F3
100
#E3E4
200
#CBCD
300
#A2A6
400
#7277
500
#4A50
600
#2F36
700
#252B
800
#1B1E
900
#1114
950
#0B0C

Shades

Darker variations

1#22267F
2#1E2271
3#1A1E63
4#161A55
5#131547
6#0F1138
7#0B0D2A
8#07091C
9#04040E

Tints

Lighter variations

1#2C33A7
2#333BC1
3#484ECE
4#6268D5
5#7C81DC
6#969AE3
7#B0B3EA
8#CBCDF1
9#E5E6F8

Tones

Muted variations

1#2B2F88
2#303483
3#35397D
4#3A3D78
5#3F4273
6#45476E
7#4A4B69
8#4F5064
9#54555E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F3
#F3F3FC
BackgroundsSubtle highlightsCard backgrounds
100
E3E4
#E3E4F8
Light backgroundsTable row hoverSkeleton loading
200
CBCD
#CBCDF1
Secondary backgroundsInput backgroundsDividers
300
A2A6
#A2A6E6
BordersInactive statesPlaceholder text
400
7277
#7277DA
Disabled statesSecondary iconsMuted text
500
4A50
#4A50CF
Primary brand colorCTAsActive elementsLinks
600
2F36
#2F36B1
Hover statesFocus ringsPrimary buttons hover
700
252B
#252B8D
Active/pressed statesDark mode accentsSecondary text
800
1B1E
#1B1E65
Text on light backgroundsHeadingsStrong borders
900
1114
#111440
Primary textHigh emphasis contentDark headings
950
0B0C
#0B0C28
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F3FC;
  --cobalt-100: #E3E4F8;
  --cobalt-200: #CBCDF1;
  --cobalt-300: #A2A6E6;
  --cobalt-400: #7277DA;
  --cobalt-500: #4A50CF;
  --cobalt-600: #2F36B1;
  --cobalt-700: #252B8D;
  --cobalt-800: #1B1E65;
  --cobalt-900: #111440;
  --cobalt-950: #0B0C28;
}
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