Cobalt

#0B66D5

Blue

Color Codes

All color formats for development

HEX
#0B66D5
RGB
rgb(11, 102, 213)
HSL
hsl(213, 90%, 44%)
OKLCH
oklch(0.53 0.188 257.7)
CMYK
cmyk(95%, 52%, 0%, 16%)

Accessibility

WCAG contrast compliance

On White Background

5.42:1

AA AAA

On Black Background

3.88:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F7
100
#DDEC
200
#C0DB
300
#90BF
400
#559E
500
#2582
600
#0B66
700
#0951
800
#063A
900
#0425
950
#0317

Shades

Darker variations

1#0A5CC0
2#0952AB
3#084795
4#073D80
5#06336B
6#042955
7#031F40
8#02142B
9#010A15

Tints

Lighter variations

1#0D73F0
2#2682F4
3#4192F5
4#5CA2F6
5#77B1F8
6#92C1F9
7#AED0FB
8#C9E0FC
9#E4EFFE

Tones

Muted variations

1#1567CB
2#1F68C1
3#2A69B7
4#346AAD
5#3E6BA3
6#486C99
7#526D8E
8#5C6E84
9#666F7A

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F7
#F0F7FE
BackgroundsSubtle highlightsCard backgrounds
100
DDEC
#DDECFD
Light backgroundsTable row hoverSkeleton loading
200
C0DB
#C0DBFC
Secondary backgroundsInput backgroundsDividers
300
90BF
#90BFF9
BordersInactive statesPlaceholder text
400
559E
#559EF6
Disabled statesSecondary iconsMuted text
500
2582
#2582F4
Primary brand colorCTAsActive elementsLinks
600
0B66
#0B66D5
Hover statesFocus ringsPrimary buttons hover
700
0951
#0951AA
Active/pressed statesDark mode accentsSecondary text
800
063A
#063A79
Text on light backgroundsHeadingsStrong borders
900
0425
#04254E
Primary textHigh emphasis contentDark headings
950
0317
#031730
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F7FE;
  --cobalt-100: #DDECFD;
  --cobalt-200: #C0DBFC;
  --cobalt-300: #90BFF9;
  --cobalt-400: #559EF6;
  --cobalt-500: #2582F4;
  --cobalt-600: #0B66D5;
  --cobalt-700: #0951AA;
  --cobalt-800: #063A79;
  --cobalt-900: #04254E;
  --cobalt-950: #031730;
}
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