Cobalt

#004080

Blue

Color Codes

All color formats for development

HEX
#004080
RGB
rgb(0, 64, 128)
HSL
hsl(210, 100%, 25%)
OKLCH
oklch(0.376 0.123 254.7)
CMYK
cmyk(100%, 50%, 0%, 50%)

Accessibility

WCAG contrast compliance

On White Background

10.27:1

AA AAA

On Black Background

2.05:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F7
100
#DBED
200
#BDDE
300
#8AC4
400
#4DA6
500
#1A8C
600
#0070
700
#0059
800
#0040
900
#0029
950
#001A

Shades

Darker variations

1#003973
2#003366
3#002D59
4#00264D
5#002040
6#001933
7#001326
8#000D1A
9#00060D

Tints

Lighter variations

1#0053A6
2#0066CC
3#0079F2
4#1A8CFF
5#409FFF
6#66B2FF
7#8CC6FF
8#B3D9FF
9#D9ECFF

Tones

Muted variations

1#064079
2#0D4073
3#13406C
4#194066
5#204060
6#264059
7#2D4053
8#33404D
9#394046

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F7
#F0F7FF
BackgroundsSubtle highlightsCard backgrounds
100
DBED
#DBEDFF
Light backgroundsTable row hoverSkeleton loading
200
BDDE
#BDDEFF
Secondary backgroundsInput backgroundsDividers
300
8AC4
#8AC4FF
BordersInactive statesPlaceholder text
400
4DA6
#4DA6FF
Disabled statesSecondary iconsMuted text
500
1A8C
#1A8CFF
Primary brand colorCTAsActive elementsLinks
600
0070
#0070E0
Hover statesFocus ringsPrimary buttons hover
700
0059
#0059B3
Active/pressed statesDark mode accentsSecondary text
800
0040
#004080
Text on light backgroundsHeadingsStrong borders
900
0029
#002952
Primary textHigh emphasis contentDark headings
950
001A
#001A33
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F7FF;
  --cobalt-100: #DBEDFF;
  --cobalt-200: #BDDEFF;
  --cobalt-300: #8AC4FF;
  --cobalt-400: #4DA6FF;
  --cobalt-500: #1A8CFF;
  --cobalt-600: #0070E0;
  --cobalt-700: #0059B3;
  --cobalt-800: #004080;
  --cobalt-900: #002952;
  --cobalt-950: #001A33;
}
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