#278CAB#278CAB

#278CAB is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.8% C 0.100 H 223.3°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#278CAB
RGB	rgb(39, 140, 171)
HSL	hsl(194, 63%, 41%)
HSV	hsv(194, 77%, 67%)
CMYK	cmyk(77.2%, 18.1%, 0%, 32.9%)
CIE-LAB	lab(54.16, -17.63, -24.47)
CIE-LCH	lch(54.16, 30.16, 234.23°)
OKLab	oklab(59.76% -0.0727 -0.0685)
OKLCH	oklch(59.76% 0.1 223.3)
XYZ	xyz(17.5624, 22.1257, 41.8652)
Luminance	0.2213 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278CAB #AB4627

analogous

#27AB88 #278CAB #274AAB

triadic

#278CAB #AB278C #8CAB27

tetradic

#278CAB #8827AB #AB4627 #4AAB27

square

#278CAB #8827AB #AB4627 #4AAB27

split-complementary

#278CAB #AB274A #AB8827

monochromatic

#103A47 #1C6379 #278CAB #3DAFD3 #6EC4DE

Accessibility & contrast

On white

3.87

#278CAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#278CAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278CAB

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278CAB	#FFFFFF	#000000	##000000
##278CAB	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A89AD

Deuteranopia (green-blind)

#697CAB

Tritanopia (blue-blind)

#009596

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #278cab;
/* rgb */ color: rgb(39, 140, 171);
/* oklch */ color: oklch(59.8% 0.100 223.3);

Tailwind

colors: {
  custom: {
    50: '#76adc4',
    500: '#278cab',
    950: '#000000',
  },
}

SCSS

$custom: #278cab;
$custom-light: #76adc4;
$custom-dark: #000000;

JSON

{
  "hex": "#278cab",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 171
  },
  "hsl": {
    "h": 194.091,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.59756,
    "c": 0.09996,
    "h": 223.3
  },
  "luminance": 0.22128
}

Semantic roles & 50–950 ramp

primary

#278CAB

secondary

#C57F69

accent

#6842E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278CAB

Body copy rendered with the generated semantic roles for this colour.

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