Cobalt

#4040A0

Blue

Color Codes

All color formats for development

HEX
#4040A0
RGB
rgb(64, 64, 160)
HSL
hsl(240, 43%, 44%)
OKLCH
oklch(0.43 0.152 277.9)
CMYK
cmyk(60%, 60%, 0%, 37%)

Accessibility

WCAG contrast compliance

On White Background

8.54:1

AA AAA

On Black Background

2.46:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F4F4
100
#E5E5
200
#D0D0
300
#ABAB
400
#7F7F
500
#5B5B
600
#4040
700
#3333
800
#2424
900
#1717
950
#0F0F

Shades

Darker variations

1#3A3A90
2#333380
3#2D2D70
4#262660
5#202050
6#1A1A40
7#131330
8#0D0D20
9#060610

Tints

Lighter variations

1#4848B5
2#5C5CBE
3#7070C6
4#8484CE
5#9999D6
6#ADADDE
7#C2C2E7
8#D6D6EF
9#EBEBF7

Tones

Muted variations

1#45459C
2#4A4A97
3#4E4E92
4#53538D
5#585888
6#5D5D83
7#62627F
8#67677A
9#6B6B75

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F4F4
#F4F4FB
BackgroundsSubtle highlightsCard backgrounds
100
E5E5
#E5E5F5
Light backgroundsTable row hoverSkeleton loading
200
D0D0
#D0D0EC
Secondary backgroundsInput backgroundsDividers
300
ABAB
#ABABDE
BordersInactive statesPlaceholder text
400
7F7F
#7F7FCC
Disabled statesSecondary iconsMuted text
500
5B5B
#5B5BBE
Primary brand colorCTAsActive elementsLinks
600
4040
#4040A0
Hover statesFocus ringsPrimary buttons hover
700
3333
#333380
Active/pressed statesDark mode accentsSecondary text
800
2424
#24245B
Text on light backgroundsHeadingsStrong borders
900
1717
#17173A
Primary textHigh emphasis contentDark headings
950
0F0F
#0F0F24
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F4F4FB;
  --cobalt-100: #E5E5F5;
  --cobalt-200: #D0D0EC;
  --cobalt-300: #ABABDE;
  --cobalt-400: #7F7FCC;
  --cobalt-500: #5B5BBE;
  --cobalt-600: #4040A0;
  --cobalt-700: #333380;
  --cobalt-800: #24245B;
  --cobalt-900: #17173A;
  --cobalt-950: #0F0F24;
}
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