Cobalt

#253B8E

Blue

Color Codes

All color formats for development

HEX
#253B8E
RGB
rgb(37, 59, 142)
HSL
hsl(227, 59%, 35%)
OKLCH
oklch(0.388 0.14 267.9)
CMYK
cmyk(74%, 58%, 0%, 44%)

Accessibility

WCAG contrast compliance

On White Background

10.02:1

AA AAA

On Black Background

2.09:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F5
100
#E3E7
200
#CAD3
300
#A2B1
400
#7188
500
#4966
600
#2E4B
700
#253B
800
#1A2A
900
#111B
950
#0A11

Shades

Darker variations

1#213580
2#1D3072
3#1A2A63
4#162455
5#121E47
6#0F1839
7#0B122B
8#070C1C
9#04060E

Tints

Lighter variations

1#2B46A8
2#3251C3
3#4764CF
4#617AD6
5#7B90DD
6#96A7E4
7#B0BDEB
8#CAD3F1
9#E5E9F8

Tones

Muted variations

1#2A3E89
2#2F4183
3#34447E
4#3A4779
5#3F4A74
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
CAD3
#CAD3F1
Secondary backgroundsInput backgroundsDividers
300
A2B1
#A2B1E7
BordersInactive statesPlaceholder text
400
7188
#7188DA
Disabled statesSecondary iconsMuted text
500
4966
#4966D0
Primary brand colorCTAsActive elementsLinks
600
2E4B
#2E4BB2
Hover statesFocus ringsPrimary buttons hover
700
253B
#253B8E
Active/pressed statesDark mode accentsSecondary text
800
1A2A
#1A2A65
Text on light backgroundsHeadingsStrong borders
900
111B
#111B41
Primary textHigh emphasis contentDark headings
950
0A11
#0A1129
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E3E7F8;
  --cobalt-200: #CAD3F1;
  --cobalt-300: #A2B1E7;
  --cobalt-400: #7188DA;
  --cobalt-500: #4966D0;
  --cobalt-600: #2E4BB2;
  --cobalt-700: #253B8E;
  --cobalt-800: #1A2A65;
  --cobalt-900: #111B41;
  --cobalt-950: #0A1129;
}
Generate More ShadesCreate PaletteConvert Color