#288EAB#288EAB

#288EAB is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.3% C 0.099 H 221.5°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#288EAB
RGB	rgb(40, 142, 171)
HSL	hsl(193, 62%, 41%)
HSV	hsv(193, 77%, 67%)
CMYK	cmyk(76.6%, 17%, 0%, 32.9%)
CIE-LAB	lab(54.80, -18.59, -23.48)
CIE-LCH	lch(54.80, 29.95, 231.63°)
OKLab	oklab(60.27% -0.0743 -0.0657)
OKLCH	oklch(60.27% 0.099 221.5)
XYZ	xyz(17.8957, 22.7352, 41.9653)
Luminance	0.2274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288EAB #AB4528

analogous

#28AB87 #288EAB #284DAB

triadic

#288EAB #AB288E #8EAB28

tetradic

#288EAB #8728AB #AB4528 #4DAB28

square

#288EAB #8728AB #AB4528 #4DAB28

split-complementary

#288EAB #AB284D #AB8728

monochromatic

#113C48 #1C6579 #288EAB #3EB1D2 #70C5DE

Accessibility & contrast

On white

3.79

#288EAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#288EAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288EAB

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288EAB	#FFFFFF	#000000	##000000
##288EAB	1.00	3.79	5.55	5.55
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8AAD

Deuteranopia (green-blind)

#6B7EAB

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288eab;
/* rgb */ color: rgb(40, 142, 171);
/* oklch */ color: oklch(60.3% 0.099 221.5);

Tailwind

colors: {
  custom: {
    50: '#77afc4',
    500: '#288eab',
    950: '#000000',
  },
}

SCSS

$custom: #288eab;
$custom-light: #77afc4;
$custom-dark: #000000;

JSON

{
  "hex": "#288eab",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 171
  },
  "hsl": {
    "h": 193.282,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.60274,
    "c": 0.0992,
    "h": 221.5
  },
  "luminance": 0.22737
}

Semantic roles & 50–950 ramp

primary

#288EAB

secondary

#C47E6A

accent

#6743E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288EAB

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

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