Cobalt

#275DB9

Blue

Color Codes

All color formats for development

HEX
#275DB9
RGB
rgb(39, 93, 185)
HSL
hsl(218, 65%, 44%)
OKLCH
oklch(0.495 0.156 260.4)
CMYK
cmyk(79%, 50%, 0%, 27%)

Accessibility

WCAG contrast compliance

On White Background

6.26:1

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
#C8D8
300
#9EBA
400
#6C96
500
#4278
600
#275D
700
#1F4A
800
#1635
900
#0E22
950
#0915

Shades

Darker variations

1#2353A7
2#1F4A94
3#1B4182
4#18386F
5#142E5D
6#10254A
7#0C1C38
8#081325
9#040913

Tints

Lighter variations

1#2C69D1
2#4379D7
3#5A8ADC
4#729AE1
5#89ABE6
6#A1BCEB
7#B8CDF0
8#D0DDF5
9#E7EEFA

Tones

Muted variations

1#2F5FB2
2#3661AB
3#3D63A3
4#44659C
5#4C6695
6#53688D
7#5A6A86
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
C8D8
#C8D8F3
Secondary backgroundsInput backgroundsDividers
300
9EBA
#9EBAEA
BordersInactive statesPlaceholder text
400
6C96
#6C96E0
Disabled statesSecondary iconsMuted text
500
4278
#4278D7
Primary brand colorCTAsActive elementsLinks
600
275D
#275DB9
Hover statesFocus ringsPrimary buttons hover
700
1F4A
#1F4A93
Active/pressed statesDark mode accentsSecondary text
800
1635
#163569
Text on light backgroundsHeadingsStrong borders
900
0E22
#0E2243
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: #C8D8F3;
  --cobalt-300: #9EBAEA;
  --cobalt-400: #6C96E0;
  --cobalt-500: #4278D7;
  --cobalt-600: #275DB9;
  --cobalt-700: #1F4A93;
  --cobalt-800: #163569;
  --cobalt-900: #0E2243;
  --cobalt-950: #09152A;
}
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