Cobalt
#274F8B
BlueColor Codes
All color formats for development
HEX
#274F8BRGB
rgb(39, 79, 139)HSL
hsl(216, 56%, 35%)OKLCH
oklch(0.431 0.109 258.4)CMYK
cmyk(72%, 43%, 0%, 45%)Accessibility
WCAG contrast compliance
Tailwind Scale
50-950 scale matching Tailwind CSS naming
Shades
Darker variations
1#23477D
2#1F3F6F
3#1B3761
4#183054
5#142846
6#102038
7#0C182A
8#08101C
9#04080E
Tints
Lighter variations
1#2F5EA5
2#366DBF
3#4A7ECC
4#6490D3
5#7EA3DB
6#98B5E2
7#B1C8E9
8#CBDAF0
9#E5EDF8
Tones
Muted variations
1#2C5086
2#315181
3#36527C
4#3B5377
5#405472
6#45556D
7#4A5668
8#4F5763
9#54585E
Usage Guidelines
Recommended use cases for each shade level
| Level | Color | Typical Use Cases |
|---|---|---|
| 50 | F3F6 #F3F6FC | BackgroundsSubtle highlightsCard backgrounds |
| 100 | E3EB #E3EBF7 | Light backgroundsTable row hoverSkeleton loading |
| 200 | CBDA #CBDAF0 | Secondary backgroundsInput backgroundsDividers |
| 300 | A4BE #A4BEE5 | BordersInactive statesPlaceholder text |
| 400 | 749C #749CD8 | Disabled statesSecondary iconsMuted text |
| 500 | 4C7F #4C7FCD | Primary brand colorCTAsActive elementsLinks |
| 600 | 3164 #3164AF | Hover statesFocus ringsPrimary buttons hover |
| 700 | 274F #274F8B | Active/pressed statesDark mode accentsSecondary text |
| 800 | 1C39 #1C3963 | Text on light backgroundsHeadingsStrong borders |
| 900 | 1224 #122440 | Primary textHigh emphasis contentDark headings |
| 950 | 0B17 #0B1728 | Maximum contrast textDark mode backgrounds |
Export Code
Copy ready-to-use code for your project
:root {
--cobalt-50: #F3F6FC;
--cobalt-100: #E3EBF7;
--cobalt-200: #CBDAF0;
--cobalt-300: #A4BEE5;
--cobalt-400: #749CD8;
--cobalt-500: #4C7FCD;
--cobalt-600: #3164AF;
--cobalt-700: #274F8B;
--cobalt-800: #1C3963;
--cobalt-900: #122440;
--cobalt-950: #0B1728;
}