Cobalt

#213F91

Blue

Color Codes

All color formats for development

HEX
#213F91
RGB
rgb(33, 63, 145)
HSL
hsl(224, 63%, 35%)
OKLCH
oklch(0.397 0.14 265.2)
CMYK
cmyk(77%, 57%, 0%, 43%)

Accessibility

WCAG contrast compliance

On White Background

9.61:1

AA AAA

On Black Background

2.18:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E2E8
200
#C9D4
300
#9FB3
400
#6E8C
500
#446B
600
#2A4F
700
#213F
800
#182D
900
#0F1D
950
#0912

Shades

Darker variations

1#1E3983
2#1A3274
3#172C66
4#142657
5#112049
6#0D193A
7#0A132C
8#070D1D
9#03060F

Tints

Lighter variations

1#274BAC
2#2D56C8
3#4269D4
4#5D7EDA
5#7894E0
6#93A9E6
7#AEBFED
8#C9D4F3
9#E4EAF9

Tones

Muted variations

1#27428C
2#2C4486
3#324781
4#384A7B
5#3D4C75
6#434F70
7#48516A
8#4E5464
9#54575F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E2E8
#E2E8F8
Light backgroundsTable row hoverSkeleton loading
200
C9D4
#C9D4F3
Secondary backgroundsInput backgroundsDividers
300
9FB3
#9FB3E9
BordersInactive statesPlaceholder text
400
6E8C
#6E8CDE
Disabled statesSecondary iconsMuted text
500
446B
#446BD5
Primary brand colorCTAsActive elementsLinks
600
2A4F
#2A4FB7
Hover statesFocus ringsPrimary buttons hover
700
213F
#213F91
Active/pressed statesDark mode accentsSecondary text
800
182D
#182D68
Text on light backgroundsHeadingsStrong borders
900
0F1D
#0F1D43
Primary textHigh emphasis contentDark headings
950
0912
#09122A
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E2E8F8;
  --cobalt-200: #C9D4F3;
  --cobalt-300: #9FB3E9;
  --cobalt-400: #6E8CDE;
  --cobalt-500: #446BD5;
  --cobalt-600: #2A4FB7;
  --cobalt-700: #213F91;
  --cobalt-800: #182D68;
  --cobalt-900: #0F1D43;
  --cobalt-950: #09122A;
}
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