Cobalt

#263B8C

Blue

Color Codes

All color formats for development

HEX
#263B8C
RGB
rgb(38, 59, 140)
HSL
hsl(228, 57%, 35%)
OKLCH
oklch(0.387 0.137 268.3)
CMYK
cmyk(73%, 58%, 0%, 45%)

Accessibility

WCAG contrast compliance

On White Background

10.06:1

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
#CBD3
300
#A3B0
400
#7387
500
#4B65
600
#304A
700
#263B
800
#1B2A
900
#121B
950
#0B11

Shades

Darker variations

1#23357E
2#1F2F70
3#1B2962
4#172354
5#131D46
6#0F1738
7#0C122A
8#080C1C
9#04060E

Tints

Lighter variations

1#2E46A6
2#3551C0
3#4963CD
4#637AD4
5#7D90DB
6#97A6E2
7#B1BCEA
8#CBD3F1
9#E5E9F8

Tones

Muted variations

1#2B3E87
2#314182
3#36447D
4#3B4778
5#404A73
6#454D6E
7#4A5069
8#4F5363
9#54565E

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F5
#F3F5FC
BackgroundsSubtle highlightsCard backgrounds
100
E3E7
#E3E7F7
Light backgroundsTable row hoverSkeleton loading
200
CBD3
#CBD3F1
Secondary backgroundsInput backgroundsDividers
300
A3B0
#A3B0E6
BordersInactive statesPlaceholder text
400
7387
#7387D9
Disabled statesSecondary iconsMuted text
500
4B65
#4B65CE
Primary brand colorCTAsActive elementsLinks
600
304A
#304AB0
Hover statesFocus ringsPrimary buttons hover
700
263B
#263B8C
Active/pressed statesDark mode accentsSecondary text
800
1B2A
#1B2A64
Text on light backgroundsHeadingsStrong borders
900
121B
#121B40
Primary textHigh emphasis contentDark headings
950
0B11
#0B1128
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F3F5FC;
  --cobalt-100: #E3E7F7;
  --cobalt-200: #CBD3F1;
  --cobalt-300: #A3B0E6;
  --cobalt-400: #7387D9;
  --cobalt-500: #4B65CE;
  --cobalt-600: #304AB0;
  --cobalt-700: #263B8C;
  --cobalt-800: #1B2A64;
  --cobalt-900: #121B40;
  --cobalt-950: #0B1128;
}
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