Cobalt

#0F2FA3

Blue

Color Codes

All color formats for development

HEX
#0F2FA3
RGB
rgb(15, 47, 163)
HSL
hsl(227, 83%, 35%)
OKLCH
oklch(0.377 0.188 265.1)
CMYK
cmyk(91%, 71%, 0%, 36%)

Accessibility

WCAG contrast compliance

On White Background

10.74:1

AA AAA

On Black Background

1.96:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F4
100
#DEE5
200
#C2CE
300
#94A9
400
#5C7C
500
#2D56
600
#133B
700
#0F2F
800
#0B22
900
#0716
950
#040E

Shades

Darker variations

1#0E2B93
2#0C2683
3#0B2172
4#091C62
5#081852
6#061341
7#050E31
8#030921
9#020510

Tints

Lighter variations

1#1238C2
2#1541E0
3#2B54EB
4#496DEE
5#6785F1
6#869EF4
7#A4B6F7
8#C2CEF9
9#E1E7FC

Tones

Muted variations

1#17339C
2#1E3895
3#253C8D
4#2D4086
5#34447E
6#3C4877
7#434D6F
8#4A5168
9#525561

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F4
#F1F4FE
BackgroundsSubtle highlightsCard backgrounds
100
DEE5
#DEE5FC
Light backgroundsTable row hoverSkeleton loading
200
C2CE
#C2CEF9
Secondary backgroundsInput backgroundsDividers
300
94A9
#94A9F5
BordersInactive statesPlaceholder text
400
5C7C
#5C7CF0
Disabled statesSecondary iconsMuted text
500
2D56
#2D56EB
Primary brand colorCTAsActive elementsLinks
600
133B
#133BCD
Hover statesFocus ringsPrimary buttons hover
700
0F2F
#0F2FA3
Active/pressed statesDark mode accentsSecondary text
800
0B22
#0B2275
Text on light backgroundsHeadingsStrong borders
900
0716
#07164B
Primary textHigh emphasis contentDark headings
950
040E
#040E2F
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F4FE;
  --cobalt-100: #DEE5FC;
  --cobalt-200: #C2CEF9;
  --cobalt-300: #94A9F5;
  --cobalt-400: #5C7CF0;
  --cobalt-500: #2D56EB;
  --cobalt-600: #133BCD;
  --cobalt-700: #0F2FA3;
  --cobalt-800: #0B2275;
  --cobalt-900: #07164B;
  --cobalt-950: #040E2F;
}
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