#288BAB#288BAB

#288BAB is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.5% C 0.100 H 224.4°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#288BAB
RGB	rgb(40, 139, 171)
HSL	hsl(195, 62%, 41%)
HSV	hsv(195, 77%, 67%)
CMYK	cmyk(76.6%, 18.7%, 0%, 32.9%)
CIE-LAB	lab(53.87, -16.97, -24.91)
CIE-LCH	lch(53.87, 30.14, 235.74°)
OKLab	oklab(59.53% -0.0713 -0.0698)
OKLCH	oklch(59.53% 0.1 224.4)
XYZ	xyz(17.4553, 21.8545, 41.8186)
Luminance	0.2186 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BAB #AB4828

analogous

#28AB8A #288BAB #284AAB

triadic

#288BAB #AB288B #8BAB28

tetradic

#288BAB #8A28AB #AB4828 #4AAB28

square

#288BAB #8A28AB #AB4828 #4AAB28

split-complementary

#288BAB #AB284A #AB8A28

monochromatic

#113A48 #1C6379 #288BAB #3EAED2 #70C3DE

Accessibility & contrast

On white

3.91

#288BAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#288BAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BAB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BAB	#FFFFFF	#000000	##000000
##288BAB	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7988AD

Deuteranopia (green-blind)

#687BAB

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288bab;
/* rgb */ color: rgb(40, 139, 171);
/* oklch */ color: oklch(59.5% 0.100 224.4);

Tailwind

colors: {
  custom: {
    50: '#76adc4',
    500: '#288bab',
    950: '#000000',
  },
}

SCSS

$custom: #288bab;
$custom-light: #76adc4;
$custom-dark: #000000;

JSON

{
  "hex": "#288bab",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 171
  },
  "hsl": {
    "h": 194.656,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59531,
    "c": 0.09981,
    "h": 224.4
  },
  "luminance": 0.21857
}

Semantic roles & 50–950 ramp

primary

#288BAB

secondary

#C4806A

accent

#6A43E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288BAB

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

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