Cobalt

#1B3098

Blue

Color Codes

All color formats for development

HEX
#1B3098
RGB
rgb(27, 48, 152)
HSL
hsl(230, 70%, 35%)
OKLCH
oklch(0.371 0.17 267.6)
CMYK
cmyk(82%, 68%, 0%, 40%)

Accessibility

WCAG contrast compliance

On White Background

10.92:1

AA AAA

On Black Background

1.92:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F2F4
100
#E1E5
200
#C7CE
300
#9BA9
400
#677C
500
#3C57
600
#223C
700
#1B30
800
#1322
900
#0C16
950
#080E

Shades

Darker variations

1#182B89
2#152679
3#13216A
4#101D5B
5#0D184C
6#0B133D
7#080E2E
8#050A1E
9#03050F

Tints

Lighter variations

1#2038B4
2#2541D0
3#3A55DC
4#566DE1
5#7285E6
6#8E9EEB
7#AAB6F0
8#C7CEF5
9#E3E7FA

Tones

Muted variations

1#213491
2#27388B
3#2E3C85
4#34407F
5#3A4478
6#404972
7#474D6C
8#4D5166
9#53555F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F2F4
#F2F4FD
BackgroundsSubtle highlightsCard backgrounds
100
E1E5
#E1E5FA
Light backgroundsTable row hoverSkeleton loading
200
C7CE
#C7CEF5
Secondary backgroundsInput backgroundsDividers
300
9BA9
#9BA9ED
BordersInactive statesPlaceholder text
400
677C
#677CE4
Disabled statesSecondary iconsMuted text
500
3C57
#3C57DD
Primary brand colorCTAsActive elementsLinks
600
223C
#223CBF
Hover statesFocus ringsPrimary buttons hover
700
1B30
#1B3098
Active/pressed statesDark mode accentsSecondary text
800
1322
#13226C
Text on light backgroundsHeadingsStrong borders
900
0C16
#0C1645
Primary textHigh emphasis contentDark headings
950
080E
#080E2B
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F2F4FD;
  --cobalt-100: #E1E5FA;
  --cobalt-200: #C7CEF5;
  --cobalt-300: #9BA9ED;
  --cobalt-400: #677CE4;
  --cobalt-500: #3C57DD;
  --cobalt-600: #223CBF;
  --cobalt-700: #1B3098;
  --cobalt-800: #13226C;
  --cobalt-900: #0C1645;
  --cobalt-950: #080E2B;
}
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