Cobalt

#28418A

Blue

Color Codes

All color formats for development

HEX
#28418A
RGB
rgb(40, 65, 138)
HSL
hsl(225, 55%, 35%)
OKLCH
oklch(0.399 0.125 266.5)
CMYK
cmyk(71%, 53%, 0%, 46%)

Accessibility

WCAG contrast compliance

On White Background

9.49:1

AA AAA

On Black Background

2.21:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E3E8
200
#CCD5
300
#A4B4
400
#758D
500
#4D6D
600
#3251
700
#2841
800
#1D2E
900
#121E
950
#0B12

Shades

Darker variations

1#243A7D
2#20346F
3#1C2D61
4#182753
5#142045
6#101A37
7#0C132A
8#080D1C
9#04060E

Tints

Lighter variations

1#304DA4
2#3759BE
3#4B6BCB
4#6580D2
5#7F95DA
6#98AAE1
7#B2C0E9
8#CCD5F0
9#E5EAF8

Tones

Muted variations

1#2D4385
2#324681
3#37487C
4#3C4B77
5#414D72
6#464F6D
7#4B5268
8#4F5463
9#54575E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E3E8
#E3E8F7
Light backgroundsTable row hoverSkeleton loading
200
CCD5
#CCD5F0
Secondary backgroundsInput backgroundsDividers
300
A4B4
#A4B4E5
BordersInactive statesPlaceholder text
400
758D
#758DD7
Disabled statesSecondary iconsMuted text
500
4D6D
#4D6DCB
Primary brand colorCTAsActive elementsLinks
600
3251
#3251AE
Hover statesFocus ringsPrimary buttons hover
700
2841
#28418A
Active/pressed statesDark mode accentsSecondary text
800
1D2E
#1D2E63
Text on light backgroundsHeadingsStrong borders
900
121E
#121E3F
Primary textHigh emphasis contentDark headings
950
0B12
#0B1228
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E3E8F7;
  --cobalt-200: #CCD5F0;
  --cobalt-300: #A4B4E5;
  --cobalt-400: #758DD7;
  --cobalt-500: #4D6DCB;
  --cobalt-600: #3251AE;
  --cobalt-700: #28418A;
  --cobalt-800: #1D2E63;
  --cobalt-900: #121E3F;
  --cobalt-950: #0B1228;
}
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