#288397#288397

#288397 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.6% C 0.088 H 215.7°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#288397
RGB	rgb(40, 131, 151)
HSL	hsl(191, 58%, 37%)
HSV	hsv(191, 74%, 59%)
CMYK	cmyk(73.5%, 13.2%, 0%, 40.8%)
CIE-LAB	lab(50.59, -19.40, -18.38)
CIE-LCH	lch(50.59, 26.72, 223.45°)
OKLab	oklab(56.63% -0.0712 -0.0512)
OKLCH	oklch(56.63% 0.088 215.7)
XYZ	xyz(14.5749, 18.9164, 32.1552)
Luminance	0.1892 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288397 #973C28

analogous

#289774 #288397 #284B97

triadic

#288397 #972883 #839728

tetradic

#288397 #742897 #973C28 #4B9728

square

#288397 #742897 #973C28 #4B9728

split-complementary

#288397 #97284B #977428

monochromatic

#0E2F36 #1B5967 #288397 #35ADC7 #64C1D6

Accessibility & contrast

On white

4.39

#288397 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#288397 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288397

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288397	#FFFFFF	#000000	##000000
##288397	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757F98

Deuteranopia (green-blind)

#667497

Tritanopia (blue-blind)

#008A89

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #288397;
/* rgb */ color: rgb(40, 131, 151);
/* oklch */ color: oklch(56.6% 0.088 215.7);

Tailwind

colors: {
  custom: {
    50: '#73a7b5',
    500: '#288397',
    950: '#000000',
  },
}

SCSS

$custom: #288397;
$custom-light: #73a7b5;
$custom-dark: #000000;

JSON

{
  "hex": "#288397",
  "rgb": {
    "r": 40,
    "g": 131,
    "b": 151
  },
  "hsl": {
    "h": 190.811,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.56634,
    "c": 0.08776,
    "h": 215.7
  },
  "luminance": 0.18918
}

Semantic roles & 50–950 ramp

primary

#288397

secondary

#BC705F

accent

#6246E1

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #288397

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

Preview Lab → · Contrast checker → · Palette generator →