#278CA8#278CA8

#278CA8 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.6% C 0.098 H 220.9°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#278CA8
RGB	rgb(39, 140, 168)
HSL	hsl(193, 62%, 41%)
HSV	hsv(193, 77%, 66%)
CMYK	cmyk(76.8%, 16.7%, 0%, 34.1%)
CIE-LAB	lab(54.04, -18.65, -22.93)
CIE-LCH	lch(54.04, 29.55, 230.88°)
OKLab	oklab(59.62% -0.0739 -0.0641)
OKLCH	oklch(59.62% 0.098 220.9)
XYZ	xyz(17.2797, 22.0126, 40.3763)
Luminance	0.2202 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278CA8 #A84327

analogous

#27A883 #278CA8 #274CA8

triadic

#278CA8 #A8278C #8CA827

tetradic

#278CA8 #8327A8 #A84327 #4CA827

square

#278CA8 #8327A8 #A84327 #4CA827

split-complementary

#278CA8 #A8274C #A88327

monochromatic

#103945 #1B6376 #278CA8 #3BB1D1 #6CC5DD

Accessibility & contrast

On white

3.89

#278CA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#278CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278CA8

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278CA8	#FFFFFF	#000000	##000000
##278CA8	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A9

Deuteranopia (green-blind)

#6A7CA8

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #278ca8;
/* rgb */ color: rgb(39, 140, 168);
/* oklch */ color: oklch(59.6% 0.098 220.9);

Tailwind

colors: {
  custom: {
    50: '#76adc2',
    500: '#278ca8',
    950: '#000000',
  },
}

SCSS

$custom: #278ca8;
$custom-light: #76adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#278ca8",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 168
  },
  "hsl": {
    "h": 193.023,
    "s": 62.319,
    "l": 40.588
  },
  "oklch": {
    "l": 0.5962,
    "c": 0.09788,
    "h": 220.9
  },
  "luminance": 0.22015
}

Semantic roles & 50–950 ramp

primary

#278CA8

secondary

#C37B67

accent

#6642E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278CA8

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

Preview Lab → · Contrast checker → · Palette generator →