Cobalt

#0F34A3

Blue

Color Codes

All color formats for development

HEX
#0F34A3
RGB
rgb(15, 52, 163)
HSL
hsl(225, 83%, 35%)
OKLCH
oklch(0.386 0.183 264.5)
CMYK
cmyk(91%, 68%, 0%, 36%)

Accessibility

WCAG contrast compliance

On White Background

10.29:1

AA AAA

On Black Background

2.04:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F4
100
#DEE6
200
#C2D0
300
#94AC
400
#5C81
500
#2D5D
600
#1342
700
#0F34
800
#0B25
900
#0718
950
#040F

Shades

Darker variations

1#0E2F93
2#0C2A83
3#0B2572
4#091F62
5#081A52
6#061541
7#051031
8#030A21
9#020510

Tints

Lighter variations

1#123EC2
2#1548E0
3#2B5BEB
4#4972EE
5#678AF1
6#86A1F4
7#A4B9F7
8#C2D0F9
9#E1E8FC

Tones

Muted variations

1#17389C
2#1E3C95
3#253F8D
4#2D4386
5#34477E
6#3C4A77
7#434E6F
8#4A5268
9#525661

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F4
#F1F4FE
BackgroundsSubtle highlightsCard backgrounds
100
DEE6
#DEE6FC
Light backgroundsTable row hoverSkeleton loading
200
C2D0
#C2D0F9
Secondary backgroundsInput backgroundsDividers
300
94AC
#94ACF5
BordersInactive statesPlaceholder text
400
5C81
#5C81F0
Disabled statesSecondary iconsMuted text
500
2D5D
#2D5DEB
Primary brand colorCTAsActive elementsLinks
600
1342
#1342CD
Hover statesFocus ringsPrimary buttons hover
700
0F34
#0F34A3
Active/pressed statesDark mode accentsSecondary text
800
0B25
#0B2575
Text on light backgroundsHeadingsStrong borders
900
0718
#07184B
Primary textHigh emphasis contentDark headings
950
040F
#040F2F
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F4FE;
  --cobalt-100: #DEE6FC;
  --cobalt-200: #C2D0F9;
  --cobalt-300: #94ACF5;
  --cobalt-400: #5C81F0;
  --cobalt-500: #2D5DEB;
  --cobalt-600: #1342CD;
  --cobalt-700: #0F34A3;
  --cobalt-800: #0B2575;
  --cobalt-900: #07184B;
  --cobalt-950: #040F2F;
}
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