Cobalt

#255B8E

Blue

Color Codes

All color formats for development

HEX
#255B8E
RGB
rgb(37, 91, 142)
HSL
hsl(209, 59%, 35%)
OKLCH
oklch(0.461 0.101 249.9)
CMYK
cmyk(74%, 36%, 0%, 44%)

Accessibility

WCAG contrast compliance

On White Background

7.08:1

AA AAA

On Black Background

2.97:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F8
100
#E3EE
200
#CADF
300
#A2C6
400
#71A8
500
#498F
600
#2E72
700
#255B
800
#1A41
900
#112A
950
#0A1A

Shades

Darker variations

1#215280
2#1D4972
3#1A4063
4#163755
5#122E47
6#0F2439
7#0B1B2B
8#07121C
9#04090E

Tints

Lighter variations

1#2B6CA8
2#327DC3
3#478DCF
4#619ED6
5#7BAEDD
6#96BEE4
7#B0CEEB
8#CADFF1
9#E5EFF8

Tones

Muted variations

1#2A5B89
2#2F5B83
3#345A7E
4#3A5A79
5#3F5A74
6#445A6E
7#495A69
8#4F5A64
9#54595F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F8
#F3F8FC
BackgroundsSubtle highlightsCard backgrounds
100
E3EE
#E3EEF8
Light backgroundsTable row hoverSkeleton loading
200
CADF
#CADFF1
Secondary backgroundsInput backgroundsDividers
300
A2C6
#A2C6E7
BordersInactive statesPlaceholder text
400
71A8
#71A8DA
Disabled statesSecondary iconsMuted text
500
498F
#498FD0
Primary brand colorCTAsActive elementsLinks
600
2E72
#2E72B2
Hover statesFocus ringsPrimary buttons hover
700
255B
#255B8E
Active/pressed statesDark mode accentsSecondary text
800
1A41
#1A4165
Text on light backgroundsHeadingsStrong borders
900
112A
#112A41
Primary textHigh emphasis contentDark headings
950
0A1A
#0A1A29
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F8FC;
  --cobalt-100: #E3EEF8;
  --cobalt-200: #CADFF1;
  --cobalt-300: #A2C6E7;
  --cobalt-400: #71A8DA;
  --cobalt-500: #498FD0;
  --cobalt-600: #2E72B2;
  --cobalt-700: #255B8E;
  --cobalt-800: #1A4165;
  --cobalt-900: #112A41;
  --cobalt-950: #0A1A29;
}
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