Cobalt

#285DB8

Blue

Color Codes

All color formats for development

HEX
#285DB8
RGB
rgb(40, 93, 184)
HSL
hsl(218, 64%, 44%)
OKLCH
oklch(0.495 0.155 260.5)
CMYK
cmyk(78%, 49%, 0%, 28%)

Accessibility

WCAG contrast compliance

On White Background

6.27:1

AA AAA

On Black Background

3.35:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F6
100
#E2EA
200
#C9D8
300
#9FBA
400
#6D97
500
#4379
600
#285D
700
#204A
800
#1735
900
#0F22
950
#0915

Shades

Darker variations

1#2454A6
2#204A93
3#1C4181
4#18386E
5#142F5C
6#10254A
7#0C1C37
8#081325
9#040912

Tints

Lighter variations

1#2E69CF
2#4479D6
3#5B8ADB
4#729BE0
5#8AABE5
6#A1BCEA
7#B9CDF0
8#D0DEF5
9#E8EEFA

Tones

Muted variations

1#305FB1
2#3761AA
3#3E63A2
4#45659B
5#4C6794
6#53698D
7#5B6A86
8#626C7F
9#696E77

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F6
#F2F6FC
BackgroundsSubtle highlightsCard backgrounds
100
E2EA
#E2EAF9
Light backgroundsTable row hoverSkeleton loading
200
C9D8
#C9D8F3
Secondary backgroundsInput backgroundsDividers
300
9FBA
#9FBAEA
BordersInactive statesPlaceholder text
400
6D97
#6D97DF
Disabled statesSecondary iconsMuted text
500
4379
#4379D6
Primary brand colorCTAsActive elementsLinks
600
285D
#285DB8
Hover statesFocus ringsPrimary buttons hover
700
204A
#204A92
Active/pressed statesDark mode accentsSecondary text
800
1735
#173569
Text on light backgroundsHeadingsStrong borders
900
0F22
#0F2243
Primary textHigh emphasis contentDark headings
950
0915
#09152A
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F6FC;
  --cobalt-100: #E2EAF9;
  --cobalt-200: #C9D8F3;
  --cobalt-300: #9FBAEA;
  --cobalt-400: #6D97DF;
  --cobalt-500: #4379D6;
  --cobalt-600: #285DB8;
  --cobalt-700: #204A92;
  --cobalt-800: #173569;
  --cobalt-900: #0F2243;
  --cobalt-950: #09152A;
}
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