#278DA9#278DA9

#278DA9 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.9% C 0.098 H 220.8°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#278DA9
RGB	rgb(39, 141, 169)
HSL	hsl(193, 63%, 41%)
HSV	hsv(193, 77%, 66%)
CMYK	cmyk(76.9%, 16.6%, 0%, 33.7%)
CIE-LAB	lab(54.39, -18.85, -22.97)
CIE-LCH	lch(54.39, 29.71, 230.63°)
OKLab	oklab(59.91% -0.0745 -0.0642)
OKLCH	oklch(59.91% 0.098 220.8)
XYZ	xyz(17.5200, 22.3435, 40.9178)
Luminance	0.2235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278DA9 #A94327

analogous

#27A984 #278DA9 #274CA9

triadic

#278DA9 #A9278D #8DA927

tetradic

#278DA9 #8427A9 #A94327 #4CA927

square

#278DA9 #8427A9 #A94327 #4CA927

split-complementary

#278DA9 #A9274C #A98427

monochromatic

#103A46 #1C6477 #278DA9 #3BB1D2 #6DC5DD

Accessibility & contrast

On white

3.84

#278DA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#278DA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278DA9

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278DA9	#FFFFFF	#000000	##000000
##278DA9	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C89AA

Deuteranopia (green-blind)

#6B7DA9

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #278da9;
/* rgb */ color: rgb(39, 141, 169);
/* oklch */ color: oklch(59.9% 0.098 220.8);

Tailwind

colors: {
  custom: {
    50: '#76aec2',
    500: '#278da9',
    950: '#000000',
  },
}

SCSS

$custom: #278da9;
$custom-light: #76aec2;
$custom-dark: #000000;

JSON

{
  "hex": "#278da9",
  "rgb": {
    "r": 39,
    "g": 141,
    "b": 169
  },
  "hsl": {
    "h": 192.923,
    "s": 62.5,
    "l": 40.784
  },
  "oklch": {
    "l": 0.59914,
    "c": 0.0984,
    "h": 220.8
  },
  "luminance": 0.22346
}

Semantic roles & 50–950 ramp

primary

#278DA9

secondary

#C47C68

accent

#6542E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278DA9

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

Preview Lab → · Contrast checker → · Palette generator →