Cobalt

#255D8D

Blue

Color Codes

All color formats for development

HEX
#255D8D
RGB
rgb(37, 93, 141)
HSL
hsl(208, 58%, 35%)
OKLCH
oklch(0.465 0.098 247.7)
CMYK
cmyk(74%, 34%, 0%, 45%)

Accessibility

WCAG contrast compliance

On White Background

6.93:1

AA AAA

On Black Background

3.03:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F8
100
#E3EE
200
#CBDF
300
#A2C7
400
#72A9
500
#4A91
600
#2F75
700
#255D
800
#1B42
900
#112A
950
#0B1A

Shades

Darker variations

1#22537F
2#1E4A71
3#1A4163
4#163855
5#132E47
6#0F2538
7#0B1C2A
8#07131C
9#04090E

Tints

Lighter variations

1#2C6EA7
2#337FC1
3#488FCE
4#629FD5
5#7CAFDC
6#96BFE3
7#B0CFEA
8#CBDFF1
9#E5EFF8

Tones

Muted variations

1#2B5C88
2#305C83
3#355C7D
4#3A5B78
5#3F5B73
6#455B6E
7#4A5A69
8#4F5A64
9#545A5E

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
CBDF
#CBDFF1
Secondary backgroundsInput backgroundsDividers
300
A2C7
#A2C7E6
BordersInactive statesPlaceholder text
400
72A9
#72A9DA
Disabled statesSecondary iconsMuted text
500
4A91
#4A91CF
Primary brand colorCTAsActive elementsLinks
600
2F75
#2F75B1
Hover statesFocus ringsPrimary buttons hover
700
255D
#255D8D
Active/pressed statesDark mode accentsSecondary text
800
1B42
#1B4265
Text on light backgroundsHeadingsStrong borders
900
112A
#112A40
Primary textHigh emphasis contentDark headings
950
0B1A
#0B1A28
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F8FC;
  --cobalt-100: #E3EEF8;
  --cobalt-200: #CBDFF1;
  --cobalt-300: #A2C7E6;
  --cobalt-400: #72A9DA;
  --cobalt-500: #4A91CF;
  --cobalt-600: #2F75B1;
  --cobalt-700: #255D8D;
  --cobalt-800: #1B4265;
  --cobalt-900: #112A40;
  --cobalt-950: #0B1A28;
}
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