Cobalt

#003580

Blue

Color Codes

All color formats for development

HEX
#003580
RGB
rgb(0, 53, 128)
HSL
hsl(215, 100%, 25%)
OKLCH
oklch(0.351 0.137 259.1)
CMYK
cmyk(100%, 59%, 0%, 50%)

Accessibility

WCAG contrast compliance

On White Background

11.53:1

AA AAA

On Black Background

1.82:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F6
100
#DBEA
200
#BDD8
300
#8ABB
400
#4D97
500
#1A79
600
#005D
700
#004A
800
#0035
900
#0022
950
#0015

Shades

Darker variations

1#003073
2#002A66
3#002559
4#00204D
5#001B40
6#001533
7#001026
8#000B1A
9#00050D

Tints

Lighter variations

1#0045A6
2#0055CC
3#0065F2
4#1A79FF
5#408FFF
6#66A6FF
7#8CBCFF
8#B3D2FF
9#D9E9FF

Tones

Muted variations

1#063679
2#0D3773
3#13386C
4#193966
5#203A60
6#263B59
7#2D3D53
8#333E4D
9#393F46

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F6
#F0F6FF
BackgroundsSubtle highlightsCard backgrounds
100
DBEA
#DBEAFF
Light backgroundsTable row hoverSkeleton loading
200
BDD8
#BDD8FF
Secondary backgroundsInput backgroundsDividers
300
8ABB
#8ABBFF
BordersInactive statesPlaceholder text
400
4D97
#4D97FF
Disabled statesSecondary iconsMuted text
500
1A79
#1A79FF
Primary brand colorCTAsActive elementsLinks
600
005D
#005DE0
Hover statesFocus ringsPrimary buttons hover
700
004A
#004AB3
Active/pressed statesDark mode accentsSecondary text
800
0035
#003580
Text on light backgroundsHeadingsStrong borders
900
0022
#002252
Primary textHigh emphasis contentDark headings
950
0015
#001533
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F6FF;
  --cobalt-100: #DBEAFF;
  --cobalt-200: #BDD8FF;
  --cobalt-300: #8ABBFF;
  --cobalt-400: #4D97FF;
  --cobalt-500: #1A79FF;
  --cobalt-600: #005DE0;
  --cobalt-700: #004AB3;
  --cobalt-800: #003580;
  --cobalt-900: #002252;
  --cobalt-950: #001533;
}
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