#278CA6#278CA6

#278CA6 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.5% C 0.097 H 219.3°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#278CA6
RGB	rgb(39, 140, 166)
HSL	hsl(192, 62%, 40%)
HSV	hsv(192, 77%, 65%)
CMYK	cmyk(76.5%, 15.7%, 0%, 34.9%)
CIE-LAB	lab(53.96, -19.32, -21.90)
CIE-LCH	lch(53.96, 29.21, 228.57°)
OKLab	oklab(59.53% -0.0747 -0.0612)
OKLCH	oklch(59.53% 0.097 219.3)
XYZ	xyz(17.0948, 21.9386, 39.4026)
Luminance	0.2194 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278CA6 #A64127

analogous

#27A680 #278CA6 #274DA6

triadic

#278CA6 #A6278C #8CA627

tetradic

#278CA6 #8027A6 #A64127 #4DA627

square

#278CA6 #8027A6 #A64127 #4DA627

split-complementary

#278CA6 #A6274D #A68027

monochromatic

#103843 #1B6274 #278CA6 #3AB2D1 #6BC5DC

Accessibility & contrast

On white

3.90

#278CA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#278CA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278CA6

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278CA6	#FFFFFF	#000000	##000000
##278CA6	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C88A7

Deuteranopia (green-blind)

#6B7CA6

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #278ca6;
/* rgb */ color: rgb(39, 140, 166);
/* oklch */ color: oklch(59.5% 0.097 219.3);

Tailwind

colors: {
  custom: {
    50: '#75adc0',
    500: '#278ca6',
    950: '#000000',
  },
}

SCSS

$custom: #278ca6;
$custom-light: #75adc0;
$custom-dark: #000000;

JSON

{
  "hex": "#278ca6",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 166
  },
  "hsl": {
    "h": 192.283,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.59531,
    "c": 0.0966,
    "h": 219.3
  },
  "luminance": 0.21941
}

Semantic roles & 50–950 ramp

primary

#278CA6

secondary

#C37966

accent

#6443E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278CA6

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

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