Cobalt

#121EA1

Blue

Color Codes

All color formats for development

HEX
#121EA1
RGB
rgb(18, 30, 161)
HSL
hsl(235, 80%, 35%)
OKLCH
oklch(0.35 0.202 267.1)
CMYK
cmyk(89%, 81%, 0%, 37%)

Accessibility

WCAG contrast compliance

On White Background

12.17:1

AA AAA

On Black Background

1.73:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F1F2
100
#DFE1
200
#C3C8
300
#959D
400
#5E6A
500
#3040
600
#1625
700
#121E
800
#0D15
900
#080E
950
#0509

Shades

Darker variations

1#101B91
2#0E1881
3#0C1570
4#0B1260
5#090F50
6#070C40
7#050930
8#040620
9#020310

Tints

Lighter variations

1#1523BE
2#1829DC
3#2E3EE8
4#4C59EB
5#6A75EE
6#8890F2
7#A5ACF5
8#C3C8F8
9#E1E3FC

Tones

Muted variations

1#19249A
2#202A92
3#27308B
4#2E3684
5#363B7D
6#3D4176
7#44476F
8#4B4D68
9#525360

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F1F2
#F1F2FD
BackgroundsSubtle highlightsCard backgrounds
100
DFE1
#DFE1FB
Light backgroundsTable row hoverSkeleton loading
200
C3C8
#C3C8F8
Secondary backgroundsInput backgroundsDividers
300
959D
#959DF3
BordersInactive statesPlaceholder text
400
5E6A
#5E6AED
Disabled statesSecondary iconsMuted text
500
3040
#3040E8
Primary brand colorCTAsActive elementsLinks
600
1625
#1625CA
Hover statesFocus ringsPrimary buttons hover
700
121E
#121EA1
Active/pressed statesDark mode accentsSecondary text
800
0D15
#0D1573
Text on light backgroundsHeadingsStrong borders
900
080E
#080E49
Primary textHigh emphasis contentDark headings
950
0509
#05092E
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --cobalt-50: #F1F2FD;
  --cobalt-100: #DFE1FB;
  --cobalt-200: #C3C8F8;
  --cobalt-300: #959DF3;
  --cobalt-400: #5E6AED;
  --cobalt-500: #3040E8;
  --cobalt-600: #1625CA;
  --cobalt-700: #121EA1;
  --cobalt-800: #0D1573;
  --cobalt-900: #080E49;
  --cobalt-950: #05092E;
}
Generate More ShadesCreate PaletteConvert Color