Steel Blue

#307FB0

Blue

Color Codes

All color formats for development

HEX
#307FB0
RGB
rgb(48, 127, 176)
HSL
hsl(203, 57%, 44%)
OKLCH
oklch(0.571 0.107 239.9)
CMYK
cmyk(73%, 28%, 0%, 31%)

Accessibility

WCAG contrast compliance

On White Background

4.39:1

AA AAA

On Black Background

4.79:1

AA AAA
Run full accessibility check

Tailwind Scale

50-950 scale matching Tailwind CSS naming

50
#F3F8
100
#E3F0
200
#CBE2
300
#A3CC
400
#73B2
500
#4B9C
600
#307F
700
#2665
800
#1B48
900
#122E
950
#0B1D

Shades

Darker variations

1#2B729F
2#27668D
3#22597B
4#1D4C6A
5#184058
6#133346
7#0E2635
8#0A1923
9#050D12

Tints

Lighter variations

1#368FC7
2#4C9CCE
3#62A8D4
4#78B5DA
5#8FC1E0
6#A5CDE6
7#BCDAED
8#D2E6F3
9#E9F3F9

Tones

Muted variations

1#377EAA
2#3D7CA3
3#437B9D
4#4A7997
5#507890
6#57768A
7#5D7583
8#63737D
9#6A7277

Usage Guidelines

Recommended use cases for each shade level

LevelColorTypical Use Cases
50
F3F8
#F3F8FC
BackgroundsSubtle highlightsCard backgrounds
100
E3F0
#E3F0F7
Light backgroundsTable row hoverSkeleton loading
200
CBE2
#CBE2F1
Secondary backgroundsInput backgroundsDividers
300
A3CC
#A3CCE6
BordersInactive statesPlaceholder text
400
73B2
#73B2D9
Disabled statesSecondary iconsMuted text
500
4B9C
#4B9CCE
Primary brand colorCTAsActive elementsLinks
600
307F
#307FB0
Hover statesFocus ringsPrimary buttons hover
700
2665
#26658C
Active/pressed statesDark mode accentsSecondary text
800
1B48
#1B4864
Text on light backgroundsHeadingsStrong borders
900
122E
#122E40
Primary textHigh emphasis contentDark headings
950
0B1D
#0B1D28
Maximum contrast textDark mode backgrounds

Export Code

Copy ready-to-use code for your project

:root {
  --steel-blue-50: #F3F8FC;
  --steel-blue-100: #E3F0F7;
  --steel-blue-200: #CBE2F1;
  --steel-blue-300: #A3CCE6;
  --steel-blue-400: #73B2D9;
  --steel-blue-500: #4B9CCE;
  --steel-blue-600: #307FB0;
  --steel-blue-700: #26658C;
  --steel-blue-800: #1B4864;
  --steel-blue-900: #122E40;
  --steel-blue-950: #0B1D28;
}
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