#288A9F#288A9F

#288A9F is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 58.7% C 0.092 H 215.5°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#288A9F
RGB	rgb(40, 138, 159)
HSL	hsl(191, 60%, 39%)
HSV	hsv(191, 75%, 62%)
CMYK	cmyk(74.8%, 13.2%, 0%, 37.6%)
CIE-LAB	lab(53.09, -20.47, -19.20)
CIE-LCH	lch(53.09, 28.07, 223.16°)
OKLab	oklab(58.75% -0.0751 -0.0535)
OKLCH	oklch(58.75% 0.092 215.5)
XYZ	xyz(16.2189, 21.1294, 36.0177)
Luminance	0.2113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288A9F #9F3D28

analogous

#289F79 #288A9F #284F9F

triadic

#288A9F #9F288A #8A9F28

tetradic

#288A9F #79289F #9F3D28 #4F9F28

square

#288A9F #79289F #9F3D28 #4F9F28

split-complementary

#288A9F #9F284F #9F7928

monochromatic

#0F353D #1C606E #288A9F #37B2CD #68C5D9

Accessibility & contrast

On white

4.02

#288A9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#288A9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A9F

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288A9F	#FFFFFF	#000000	##000000
##288A9F	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B86A0

Deuteranopia (green-blind)

#6B7A9F

Tritanopia (blue-blind)

#009291

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288a9f;
/* rgb */ color: rgb(40, 138, 159);
/* oklch */ color: oklch(58.7% 0.092 215.5);

Tailwind

colors: {
  custom: {
    50: '#74acbb',
    500: '#288a9f',
    950: '#000000',
  },
}

SCSS

$custom: #288a9f;
$custom-light: #74acbb;
$custom-dark: #000000;

JSON

{
  "hex": "#288a9f",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 159
  },
  "hsl": {
    "h": 190.588,
    "s": 59.799,
    "l": 39.02
  },
  "oklch": {
    "l": 0.58747,
    "c": 0.09226,
    "h": 215.5
  },
  "luminance": 0.21131
}

Semantic roles & 50–950 ramp

primary

#288A9F

secondary

#BF7464

accent

#6145E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288A9F

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

Preview Lab → · Contrast checker → · Palette generator →