Cobalt

#01507E

Blue

Color Codes

All color formats for development

HEX
#01507E
RGB
rgb(1, 80, 126)
HSL
hsl(202, 98%, 25%)
OKLCH
oklch(0.415 0.101 243.6)
CMYK
cmyk(99%, 37%, 0%, 51%)

Accessibility

WCAG contrast compliance

On White Background

8.57:1

AA AAA

On Black Background

2.45:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F9
100
#DCF2
200
#BDE7
300
#8BD4
400
#4EBD
500
#1CAA
600
#028E
700
#0271
800
#0150
900
#0133
950
#0120

Shades

Darker variations

1#014872
2#014065
3#013858
4#01304C
5#01283F
6#012032
7#001826
8#001019
9#00080D

Tints

Lighter variations

1#0269A4
2#0281CA
3#0299F0
4#1CAAFD
5#42B8FD
6#68C6FD
7#8DD5FE
8#B3E3FE
9#D9F1FF

Tones

Muted variations

1#084F78
2#0E4D72
3#144B6B
4#1A4A65
5#21485F
6#274659
7#2D4552
8#33434C
9#3A4146

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F9
#F0F9FF
BackgroundsSubtle highlightsCard backgrounds
100
DCF2
#DCF2FF
Light backgroundsTable row hoverSkeleton loading
200
BDE7
#BDE7FE
Secondary backgroundsInput backgroundsDividers
300
8BD4
#8BD4FE
BordersInactive statesPlaceholder text
400
4EBD
#4EBDFD
Disabled statesSecondary iconsMuted text
500
1CAA
#1CAAFD
Primary brand colorCTAsActive elementsLinks
600
028E
#028EDE
Hover statesFocus ringsPrimary buttons hover
700
0271
#0271B1
Active/pressed statesDark mode accentsSecondary text
800
0150
#01507E
Text on light backgroundsHeadingsStrong borders
900
0133
#013351
Primary textHigh emphasis contentDark headings
950
0120
#012032
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F9FF;
  --cobalt-100: #DCF2FF;
  --cobalt-200: #BDE7FE;
  --cobalt-300: #8BD4FE;
  --cobalt-400: #4EBDFD;
  --cobalt-500: #1CAAFD;
  --cobalt-600: #028EDE;
  --cobalt-700: #0271B1;
  --cobalt-800: #01507E;
  --cobalt-900: #013351;
  --cobalt-950: #012032;
}
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