#278AA4#278AA4

#278AA4 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 58.9% C 0.096 H 219.7°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#278AA4
RGB	rgb(39, 138, 164)
HSL	hsl(192, 62%, 40%)
HSV	hsv(192, 76%, 64%)
CMYK	cmyk(76.2%, 15.9%, 0%, 35.7%)
CIE-LAB	lab(53.26, -18.93, -21.82)
CIE-LCH	lch(53.26, 28.89, 229.07°)
OKLab	oklab(58.94% -0.0735 -0.061)
OKLCH	oklch(58.94% 0.096 219.7)
XYZ	xyz(16.6232, 21.2866, 38.3474)
Luminance	0.2129 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278AA4 #A44127

analogous

#27A480 #278AA4 #274CA4

triadic

#278AA4 #A4278A #8AA427

tetradic

#278AA4 #8027A4 #A44127 #4CA427

square

#278AA4 #8027A4 #A44127 #4CA427

split-complementary

#278AA4 #A4274C #A48027

monochromatic

#0F3741 #1B6073 #278AA4 #38B0D0 #6AC4DC

Accessibility & contrast

On white

3.99

#278AA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#278AA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278AA4

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278AA4	#FFFFFF	#000000	##000000
##278AA4	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A86A5

Deuteranopia (green-blind)

#697AA4

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #278aa4;
/* rgb */ color: rgb(39, 138, 164);
/* oklch */ color: oklch(58.9% 0.096 219.7);

Tailwind

colors: {
  custom: {
    50: '#75acbf',
    500: '#278aa4',
    950: '#000000',
  },
}

SCSS

$custom: #278aa4;
$custom-light: #75acbf;
$custom-dark: #000000;

JSON

{
  "hex": "#278aa4",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 164
  },
  "hsl": {
    "h": 192.48,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.58942,
    "c": 0.09555,
    "h": 219.7
  },
  "luminance": 0.21289
}

Semantic roles & 50–950 ramp

primary

#278AA4

secondary

#C27865

accent

#6543E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278AA4

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

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