Cobalt

#15289D

Blue

Color Codes

All color formats for development

HEX
#15289D
RGB
rgb(21, 40, 157)
HSL
hsl(232, 76%, 35%)
OKLCH
oklch(0.361 0.187 267.1)
CMYK
cmyk(87%, 75%, 0%, 38%)

Accessibility

WCAG contrast compliance

On White Background

11.52:1

AA AAA

On Black Background

1.82:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F3
100
#E0E3
200
#C5CB
300
#98A4
400
#6274
500
#354C
600
#1B32
700
#1528
800
#0F1C
900
#0A12
950
#060B

Shades

Darker variations

1#13248D
2#11207E
3#0F1C6E
4#0D185E
5#0B144F
6#09103F
7#060C2F
8#04081F
9#020410

Tints

Lighter variations

1#192FBA
2#1D36D7
3#334AE3
4#5064E7
5#6D7EEB
6#8A98EF
7#A7B2F3
8#C5CBF7
9#E2E5FB

Tones

Muted variations

1#1C2C96
2#233190
3#2A3689
4#313B82
5#37407B
6#3E4574
7#454A6E
8#4C4F67
9#525460

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F3
#F2F3FD
BackgroundsSubtle highlightsCard backgrounds
100
E0E3
#E0E3FB
Light backgroundsTable row hoverSkeleton loading
200
C5CB
#C5CBF7
Secondary backgroundsInput backgroundsDividers
300
98A4
#98A4F1
BordersInactive statesPlaceholder text
400
6274
#6274EA
Disabled statesSecondary iconsMuted text
500
354C
#354CE3
Primary brand colorCTAsActive elementsLinks
600
1B32
#1B32C5
Hover statesFocus ringsPrimary buttons hover
700
1528
#15289D
Active/pressed statesDark mode accentsSecondary text
800
0F1C
#0F1C70
Text on light backgroundsHeadingsStrong borders
900
0A12
#0A1248
Primary textHigh emphasis contentDark headings
950
060B
#060B2D
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F3FD;
  --cobalt-100: #E0E3FB;
  --cobalt-200: #C5CBF7;
  --cobalt-300: #98A4F1;
  --cobalt-400: #6274EA;
  --cobalt-500: #354CE3;
  --cobalt-600: #1B32C5;
  --cobalt-700: #15289D;
  --cobalt-800: #0F1C70;
  --cobalt-900: #0A1248;
  --cobalt-950: #060B2D;
}
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