#278399#278399

#278399 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 56.7% C 0.089 H 217.5°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#278399
RGB	rgb(39, 131, 153)
HSL	hsl(192, 59%, 38%)
HSV	hsv(192, 75%, 60%)
CMYK	cmyk(74.5%, 14.4%, 0%, 40%)
CIE-LAB	lab(50.64, -18.86, -19.46)
CIE-LCH	lch(50.64, 27.10, 225.90°)
OKLab	oklab(56.69% -0.0709 -0.0543)
OKLCH	oklch(56.69% 0.089 217.5)
XYZ	xyz(14.7004, 18.9621, 33.0161)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278399 #993D27

analogous

#279976 #278399 #274A99

triadic

#278399 #992783 #839927

tetradic

#278399 #762799 #993D27 #4A9927

square

#278399 #762799 #993D27 #4A9927

split-complementary

#278399 #99274A #997627

monochromatic

#0E2F37 #1B5968 #278399 #33ADCA #63C1D7

Accessibility & contrast

On white

4.38

#278399 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#278399 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278399

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278399	#FFFFFF	#000000	##000000
##278399	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757F9A

Deuteranopia (green-blind)

#657499

Tritanopia (blue-blind)

#008B8A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #278399;
/* rgb */ color: rgb(39, 131, 153);
/* oklch */ color: oklch(56.7% 0.089 217.5);

Tailwind

colors: {
  custom: {
    50: '#73a7b7',
    500: '#278399',
    950: '#000000',
  },
}

SCSS

$custom: #278399;
$custom-light: #73a7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#278399",
  "rgb": {
    "r": 39,
    "g": 131,
    "b": 153
  },
  "hsl": {
    "h": 191.579,
    "s": 59.375,
    "l": 37.647
  },
  "oklch": {
    "l": 0.56695,
    "c": 0.0893,
    "h": 217.5
  },
  "luminance": 0.18964
}

Semantic roles & 50–950 ramp

primary

#278399

secondary

#BD715F

accent

#6445E3

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #278399

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

Preview Lab → · Contrast checker → · Palette generator →