Cobalt

#243D8F

Blue

Color Codes

All color formats for development

HEX
#243D8F
RGB
rgb(36, 61, 143)
HSL
hsl(226, 60%, 35%)
OKLCH
oklch(0.392 0.139 266.9)
CMYK
cmyk(75%, 57%, 0%, 44%)

Accessibility

WCAG contrast compliance

On White Background

9.82:1

AA AAA

On Black Background

2.14:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E2E7
200
#CAD3
300
#A1B2
400
#7089
500
#4768
600
#2D4C
700
#243D
800
#1A2B
900
#101C
950
#0A11

Shades

Darker variations

1#203781
2#1D3172
3#192A64
4#152456
5#121E47
6#0E1839
7#0B122B
8#070C1D
9#04060E

Tints

Lighter variations

1#2A48A9
2#3153C4
3#4566D1
4#607CD7
5#7A92DE
6#95A7E4
7#AFBDEB
8#CAD3F2
9#E4E9F8

Tones

Muted variations

1#294089
2#2E4284
3#34457F
4#394879
5#3E4B74
6#444E6F
7#495169
8#4F5464
9#54565F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E2E7
#E2E7F8
Light backgroundsTable row hoverSkeleton loading
200
CAD3
#CAD3F2
Secondary backgroundsInput backgroundsDividers
300
A1B2
#A1B2E8
BordersInactive statesPlaceholder text
400
7089
#7089DB
Disabled statesSecondary iconsMuted text
500
4768
#4768D1
Primary brand colorCTAsActive elementsLinks
600
2D4C
#2D4CB4
Hover statesFocus ringsPrimary buttons hover
700
243D
#243D8F
Active/pressed statesDark mode accentsSecondary text
800
1A2B
#1A2B66
Text on light backgroundsHeadingsStrong borders
900
101C
#101C41
Primary textHigh emphasis contentDark headings
950
0A11
#0A1129
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E2E7F8;
  --cobalt-200: #CAD3F2;
  --cobalt-300: #A1B2E8;
  --cobalt-400: #7089DB;
  --cobalt-500: #4768D1;
  --cobalt-600: #2D4CB4;
  --cobalt-700: #243D8F;
  --cobalt-800: #1A2B66;
  --cobalt-900: #101C41;
  --cobalt-950: #0A1129;
}
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