#278FA9#278FA9

#278FA9 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.4% C 0.098 H 218.8°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#278FA9
RGB	rgb(39, 143, 169)
HSL	hsl(192, 63%, 41%)
HSV	hsv(192, 77%, 66%)
CMYK	cmyk(76.9%, 15.4%, 0%, 33.7%)
CIE-LAB	lab(55.01, -19.92, -22.01)
CIE-LCH	lch(55.01, 29.69, 227.87°)
OKLab	oklab(60.41% -0.0765 -0.0615)
OKLCH	oklch(60.41% 0.098 218.8)
XYZ	xyz(17.8176, 22.9387, 41.0170)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278FA9 #A94127

analogous

#27A982 #278FA9 #274EA9

triadic

#278FA9 #A9278F #8FA927

tetradic

#278FA9 #8227A9 #A94127 #4EA927

square

#278FA9 #8227A9 #A94127 #4EA927

split-complementary

#278FA9 #A9274E #A98227

monochromatic

#103B46 #1C6577 #278FA9 #3BB4D2 #6DC7DD

Accessibility & contrast

On white

3.76

#278FA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#278FA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278FA9

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278FA9	#FFFFFF	#000000	##000000
##278FA9	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8BAA

Deuteranopia (green-blind)

#6D7EA9

Tritanopia (blue-blind)

#009897

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278fa9;
/* rgb */ color: rgb(39, 143, 169);
/* oklch */ color: oklch(60.4% 0.098 218.8);

Tailwind

colors: {
  custom: {
    50: '#76b0c2',
    500: '#278fa9',
    950: '#000000',
  },
}

SCSS

$custom: #278fa9;
$custom-light: #76b0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#278fa9",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 169
  },
  "hsl": {
    "h": 192,
    "s": 62.5,
    "l": 40.784
  },
  "oklch": {
    "l": 0.60411,
    "c": 0.09819,
    "h": 218.8
  },
  "luminance": 0.22941
}

Semantic roles & 50–950 ramp

primary

#278FA9

secondary

#C47A68

accent

#6342E6

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278FA9

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

Preview Lab → · Contrast checker → · Palette generator →