Steel Blue

#639DB6

Blue

Color Codes

All color formats for development

HEX
#639DB6
RGB
rgb(99, 157, 182)
HSL
hsl(198, 36%, 55%)
OKLCH
oklch(0.666 0.071 227.3)
CMYK
cmyk(46%, 14%, 0%, 29%)

Accessibility

WCAG contrast compliance

On White Background

2.99:1

AA AAA

On Black Background

7.03:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F5F8
100
#E7F0
200
#D2E3
300
#AFCD
400
#86B3
500
#639D
600
#4880
700
#3966
800
#2949
900
#1A2F
950
#101D

Shades

Darker variations

1#5190AC
2#488099
3#3F7086
4#366072
5#2D505F
6#24404C
7#1B3039
8#122026
9#091013

Tints

Lighter variations

1#73A7BD
2#82B0C4
3#92BACC
4#A1C4D3
5#B1CEDA
6#C1D8E2
7#D0E2E9
8#E0EBF0
9#EFF5F8

Tones

Muted variations

1#679BB1
2#6B99AD
3#6F98A9
4#7396A5
5#7895A1
6#7C939D
7#809199
8#849095
9#888E90

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F5F8
#F5F8FA
BackgroundsSubtle highlightsCard backgrounds
100
E7F0
#E7F0F4
Light backgroundsTable row hoverSkeleton loading
200
D2E3
#D2E3EA
Secondary backgroundsInput backgroundsDividers
300
AFCD
#AFCDD9
BordersInactive statesPlaceholder text
400
86B3
#86B3C6
Disabled statesSecondary iconsMuted text
500
639D
#639DB6
Primary brand colorCTAsActive elementsLinks
600
4880
#488099
Hover statesFocus ringsPrimary buttons hover
700
3966
#396679
Active/pressed statesDark mode accentsSecondary text
800
2949
#294957
Text on light backgroundsHeadingsStrong borders
900
1A2F
#1A2F37
Primary textHigh emphasis contentDark headings
950
101D
#101D23
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --steel-blue-50: #F5F8FA;
  --steel-blue-100: #E7F0F4;
  --steel-blue-200: #D2E3EA;
  --steel-blue-300: #AFCDD9;
  --steel-blue-400: #86B3C6;
  --steel-blue-500: #639DB6;
  --steel-blue-600: #488099;
  --steel-blue-700: #396679;
  --steel-blue-800: #294957;
  --steel-blue-900: #1A2F37;
  --steel-blue-950: #101D23;
}
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