Cobalt

#03507D

Blue

Color Codes

All color formats for development

HEX
#03507D
RGB
rgb(3, 80, 125)
HSL
hsl(202, 95%, 25%)
OKLCH
oklch(0.415 0.099 243.4)
CMYK
cmyk(98%, 36%, 0%, 51%)

Accessibility

WCAG contrast compliance

On White Background

8.58:1

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
#BEE6
300
#8DD3
400
#51BC
500
#1FA9
600
#068D
700
#0470
800
#0350
900
#0233
950
#0120

Shades

Darker variations

1#034870
2#034063
3#023857
4#02304B
5#02283E
6#012032
7#011825
8#011019
9#00080C

Tints

Lighter variations

1#0468A2
2#0580C7
3#0698EC
4#1FA9F9
5#45B8FA
6#6AC6FB
7#8FD4FC
8#B4E2FD
9#DAF1FE

Tones

Muted variations

1#094E76
2#0F4D70
3#154B6A
4#1B4964
5#21485E
6#284658
7#2E4552
8#34434C
9#3A4146

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F9
#F0F9FF
BackgroundsSubtle highlightsCard backgrounds
100
DCF2
#DCF2FE
Light backgroundsTable row hoverSkeleton loading
200
BEE6
#BEE6FD
Secondary backgroundsInput backgroundsDividers
300
8DD3
#8DD3FC
BordersInactive statesPlaceholder text
400
51BC
#51BCFB
Disabled statesSecondary iconsMuted text
500
1FA9
#1FA9F9
Primary brand colorCTAsActive elementsLinks
600
068D
#068DDB
Hover statesFocus ringsPrimary buttons hover
700
0470
#0470AE
Active/pressed statesDark mode accentsSecondary text
800
0350
#03507C
Text on light backgroundsHeadingsStrong borders
900
0233
#023350
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: #DCF2FE;
  --cobalt-200: #BEE6FD;
  --cobalt-300: #8DD3FC;
  --cobalt-400: #51BCFB;
  --cobalt-500: #1FA9F9;
  --cobalt-600: #068DDB;
  --cobalt-700: #0470AE;
  --cobalt-800: #03507C;
  --cobalt-900: #023350;
  --cobalt-950: #012032;
}
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