#288A9E#288A9E

#288A9E is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 58.7% C 0.092 H 214.6°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#288A9E
RGB	rgb(40, 138, 158)
HSL	hsl(190, 60%, 39%)
HSV	hsv(190, 75%, 62%)
CMYK	cmyk(74.7%, 12.7%, 0%, 38%)
CIE-LAB	lab(53.05, -20.81, -18.68)
CIE-LCH	lch(53.05, 27.96, 221.91°)
OKLab	oklab(58.7% -0.0756 -0.0521)
OKLCH	oklch(58.7% 0.092 214.6)
XYZ	xyz(16.1325, 21.0948, 35.5626)
Luminance	0.2110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288A9E #9E3C28

analogous

#289E77 #288A9E #284F9E

triadic

#288A9E #9E288A #8A9E28

tetradic

#288A9E #77289E #9E3C28 #4F9E28

square

#288A9E #77289E #9E3C28 #4F9E28

split-complementary

#288A9E #9E284F #9E7728

monochromatic

#0F353C #1C5F6D #288A9E #37B3CC #68C6D9

Accessibility & contrast

On white

4.02

#288A9E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#288A9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A9E

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288A9E	#FFFFFF	#000000	##000000
##288A9E	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C859F

Deuteranopia (green-blind)

#6C7A9E

Tritanopia (blue-blind)

#009290

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288a9e;
/* rgb */ color: rgb(40, 138, 158);
/* oklch */ color: oklch(58.7% 0.092 214.6);

Tailwind

colors: {
  custom: {
    50: '#74acba',
    500: '#288a9e',
    950: '#000000',
  },
}

SCSS

$custom: #288a9e;
$custom-light: #74acba;
$custom-dark: #000000;

JSON

{
  "hex": "#288a9e",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 158
  },
  "hsl": {
    "h": 190.169,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.58704,
    "c": 0.09176,
    "h": 214.6
  },
  "luminance": 0.21097
}

Semantic roles & 50–950 ramp

primary

#288A9E

secondary

#BF7363

accent

#6045E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288A9E

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

Preview Lab → · Contrast checker → · Palette generator →