Cobalt
#28598A
BlueColor Codes
All color formats for development
HEX
#28598ARGB
rgb(40, 89, 138)HSL
hsl(210, 55%, 35%)OKLCH
oklch(0.455 0.096 250.8)CMYK
cmyk(71%, 36%, 0%, 46%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#24507D
2#20476F
3#1C3E61
4#183653
5#142D45
6#102437
7#0C1B2A
8#08121C
9#04090E
Tints
Lighter variations
1#306AA4
2#377ABE
3#4B8BCB
4#659CD2
5#7FACDA
6#98BDE1
7#B2CDE9
8#CCDEF0
9#E5EEF8
Tones
Muted variations
1#2D5985
2#325981
3#37597C
4#3C5977
5#415972
6#46596D
7#4B5968
8#4F5963
9#54595E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F7 #F3F7FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3ED #E3EDF7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CCDE #CCDEF0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4C4 #A4C4E5 | BordersInactive statesPlaceholder text |
| 400 | 75A6 #75A6D7 | Disabled statesSecondary iconsMuted text |
| 500 | 4D8C #4D8CCB | Primary brand colorCTAsActive elementsLinks |
| 600 | 3270 #3270AE | Hover statesFocus ringsPrimary buttons hover |
| 700 | 2859 #28598A | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1D40 #1D4063 | Text on light backgroundsHeadingsStrong borders |
| 900 | 1229 #12293F | Primary textHigh emphasis contentDark headings |
| 950 | 0B1A #0B1A28 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F7FC;
--cobalt-100: #E3EDF7;
--cobalt-200: #CCDEF0;
--cobalt-300: #A4C4E5;
--cobalt-400: #75A6D7;
--cobalt-500: #4D8CCB;
--cobalt-600: #3270AE;
--cobalt-700: #28598A;
--cobalt-800: #1D4063;
--cobalt-900: #12293F;
--cobalt-950: #0B1A28;
}