Cobalt

#253A8E

Blue

Color Codes

All color formats for development

HEX
#253A8E
RGB
rgb(37, 58, 142)
HSL
hsl(228, 59%, 35%)
OKLCH
oklch(0.386 0.141 268.3)
CMYK
cmyk(74%, 59%, 0%, 44%)

Accessibility

WCAG contrast compliance

On White Background

10.12:1

AA AAA

On Black Background

2.07:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E3E7
200
#CAD2
300
#A2B0
400
#7186
500
#4964
600
#2E48
700
#253A
800
#1A29
900
#111A
950
#0A10

Shades

Darker variations

1#213480
2#1D2E72
3#1A2863
4#162355
5#121D47
6#0F1739
7#0B112B
8#070C1C
9#04060E

Tints

Lighter variations

1#2B44A8
2#324FC3
3#4762CF
4#6178D6
5#7B8FDD
6#96A5E4
7#B0BCEB
8#CAD2F1
9#E5E9F8

Tones

Muted variations

1#2A3D89
2#2F4083
3#34437E
4#3A4679
5#3F4974
6#444D6E
7#495069
8#4F5364
9#54565F

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E3E7
#E3E7F8
Light backgroundsTable row hoverSkeleton loading
200
CAD2
#CAD2F1
Secondary backgroundsInput backgroundsDividers
300
A2B0
#A2B0E7
BordersInactive statesPlaceholder text
400
7186
#7186DA
Disabled statesSecondary iconsMuted text
500
4964
#4964D0
Primary brand colorCTAsActive elementsLinks
600
2E48
#2E48B2
Hover statesFocus ringsPrimary buttons hover
700
253A
#253A8E
Active/pressed statesDark mode accentsSecondary text
800
1A29
#1A2965
Text on light backgroundsHeadingsStrong borders
900
111A
#111A41
Primary textHigh emphasis contentDark headings
950
0A10
#0A1029
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E3E7F8;
  --cobalt-200: #CAD2F1;
  --cobalt-300: #A2B0E7;
  --cobalt-400: #7186DA;
  --cobalt-500: #4964D0;
  --cobalt-600: #2E48B2;
  --cobalt-700: #253A8E;
  --cobalt-800: #1A2965;
  --cobalt-900: #111A41;
  --cobalt-950: #0A1029;
}
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