#278EAB#278EAB

#278EAB is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.3% C 0.100 H 221.4°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#278EAB
RGB	rgb(39, 142, 171)
HSL	hsl(193, 63%, 41%)
HSV	hsv(193, 77%, 67%)
CMYK	cmyk(77.2%, 17%, 0%, 32.9%)
CIE-LAB	lab(54.78, -18.71, -23.52)
CIE-LCH	lch(54.78, 30.05, 231.50°)
OKLab	oklab(60.25% -0.0747 -0.0658)
OKLCH	oklch(60.25% 0.1 221.4)
XYZ	xyz(17.8573, 22.7154, 41.9635)
Luminance	0.2272 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278EAB #AB4427

analogous

#27AB86 #278EAB #274CAB

triadic

#278EAB #AB278E #8EAB27

tetradic

#278EAB #8627AB #AB4427 #4CAB27

square

#278EAB #8627AB #AB4427 #4CAB27

split-complementary

#278EAB #AB274C #AB8627

monochromatic

#103B47 #1C6579 #278EAB #3DB2D3 #6EC5DE

Accessibility & contrast

On white

3.79

#278EAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#278EAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278EAB

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278EAB	#FFFFFF	#000000	##000000
##278EAB	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8AAD

Deuteranopia (green-blind)

#6B7EAB

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #278eab;
/* rgb */ color: rgb(39, 142, 171);
/* oklch */ color: oklch(60.3% 0.100 221.4);

Tailwind

colors: {
  custom: {
    50: '#76afc4',
    500: '#278eab',
    950: '#000000',
  },
}

SCSS

$custom: #278eab;
$custom-light: #76afc4;
$custom-dark: #000000;

JSON

{
  "hex": "#278eab",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 171
  },
  "hsl": {
    "h": 193.182,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.60252,
    "c": 0.09958,
    "h": 221.4
  },
  "luminance": 0.22718
}

Semantic roles & 50–950 ramp

primary

#278EAB

secondary

#C57D69

accent

#6642E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278EAB

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

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