Cobalt

#155ECB

Blue

Color Codes

All color formats for development

HEX
#155ECB
RGB
rgb(21, 94, 203)
HSL
hsl(216, 81%, 44%)
OKLCH
oklch(0.507 0.183 259.4)
CMYK
cmyk(90%, 54%, 0%, 20%)

Accessibility

WCAG contrast compliance

On White Background

6.01:1

AA AAA

On Black Background

3.50:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F6
100
#DFEA
200
#C3D8
300
#95BB
400
#5D97
500
#2F7A
600
#155E
700
#114B
800
#0C35
900
#0822
950
#0515

Shades

Darker variations

1#1355B7
2#114BA2
3#0F428E
4#0D387A
5#0B2F66
6#092651
7#061C3D
8#041329
9#020914

Tints

Lighter variations

1#186AE5
2#307AE9
3#4A8BEC
4#649BEF
5#7EACF1
6#98BDF4
7#B1CDF7
8#CBDEFA
9#E5EEFC

Tones

Muted variations

1#1E60C2
2#2762B9
3#3163B0
4#3A65A7
5#43679E
6#4C6995
7#556B8B
8#5E6D82
9#676E79

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F6
#F1F6FE
BackgroundsSubtle highlightsCard backgrounds
100
DFEA
#DFEAFC
Light backgroundsTable row hoverSkeleton loading
200
C3D8
#C3D8F9
Secondary backgroundsInput backgroundsDividers
300
95BB
#95BBF4
BordersInactive statesPlaceholder text
400
5D97
#5D97EE
Disabled statesSecondary iconsMuted text
500
2F7A
#2F7AE9
Primary brand colorCTAsActive elementsLinks
600
155E
#155ECB
Hover statesFocus ringsPrimary buttons hover
700
114B
#114BA2
Active/pressed statesDark mode accentsSecondary text
800
0C35
#0C3573
Text on light backgroundsHeadingsStrong borders
900
0822
#08224A
Primary textHigh emphasis contentDark headings
950
0515
#05152E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F6FE;
  --cobalt-100: #DFEAFC;
  --cobalt-200: #C3D8F9;
  --cobalt-300: #95BBF4;
  --cobalt-400: #5D97EE;
  --cobalt-500: #2F7AE9;
  --cobalt-600: #155ECB;
  --cobalt-700: #114BA2;
  --cobalt-800: #0C3573;
  --cobalt-900: #08224A;
  --cobalt-950: #05152E;
}
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