Cobalt

#0351B0

Blue

Color Codes

All color formats for development

HEX
#0351B0
RGB
rgb(3, 81, 176)
HSL
hsl(213, 97%, 35%)
OKLCH
oklch(0.455 0.166 258)
CMYK
cmyk(98%, 54%, 0%, 31%)

Accessibility

WCAG contrast compliance

On White Background

7.48:1

AA AAA

On Black Background

2.81:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F0F7
100
#DCEB
200
#BEDB
300
#8BBF
400
#4F9D
500
#1D81
600
#0365
700
#0351
800
#023A
900
#0125
950
#0117

Shades

Darker variations

1#02499E
2#02408D
3#02387B
4#023069
5#012858
6#012046
7#011835
8#011023
9#000812

Tints

Lighter variations

1#0360D0
2#046FF1
3#1A80FC
4#3B92FC
5#5CA4FD
6#7CB6FD
7#9DC8FE
8#BEDBFE
9#DEEDFF

Tones

Muted variations

1#0B51A7
2#14529F
3#1D5396
4#25548D
5#2E5585
6#37567C
7#3F5773
8#48586B
9#515862

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F0F7
#F0F7FF
BackgroundsSubtle highlightsCard backgrounds
100
DCEB
#DCEBFE
Light backgroundsTable row hoverSkeleton loading
200
BEDB
#BEDBFE
Secondary backgroundsInput backgroundsDividers
300
8BBF
#8BBFFD
BordersInactive statesPlaceholder text
400
4F9D
#4F9DFC
Disabled statesSecondary iconsMuted text
500
1D81
#1D81FC
Primary brand colorCTAsActive elementsLinks
600
0365
#0365DD
Hover statesFocus ringsPrimary buttons hover
700
0351
#0351B0
Active/pressed statesDark mode accentsSecondary text
800
023A
#023A7E
Text on light backgroundsHeadingsStrong borders
900
0125
#012550
Primary textHigh emphasis contentDark headings
950
0117
#011732
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F0F7FF;
  --cobalt-100: #DCEBFE;
  --cobalt-200: #BEDBFE;
  --cobalt-300: #8BBFFD;
  --cobalt-400: #4F9DFC;
  --cobalt-500: #1D81FC;
  --cobalt-600: #0365DD;
  --cobalt-700: #0351B0;
  --cobalt-800: #023A7E;
  --cobalt-900: #012550;
  --cobalt-950: #011732;
}
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