#288DAB#288DAB

#288DAB is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.0% C 0.099 H 222.5°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#288DAB
RGB	rgb(40, 141, 171)
HSL	hsl(194, 62%, 41%)
HSV	hsv(194, 77%, 67%)
CMYK	cmyk(76.6%, 17.5%, 0%, 32.9%)
CIE-LAB	lab(54.49, -18.05, -23.96)
CIE-LCH	lch(54.49, 30.00, 233.00°)
OKLab	oklab(60.03% -0.0733 -0.0671)
OKLCH	oklch(60.03% 0.099 222.5)
XYZ	xyz(17.7476, 22.4390, 41.9160)
Luminance	0.2244 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DAB #AB4628

analogous

#28AB88 #288DAB #284CAB

triadic

#288DAB #AB288D #8DAB28

tetradic

#288DAB #8828AB #AB4628 #4CAB28

square

#288DAB #8828AB #AB4628 #4CAB28

split-complementary

#288DAB #AB284C #AB8828

monochromatic

#113B48 #1C6479 #288DAB #3EB0D2 #70C4DE

Accessibility & contrast

On white

3.83

#288DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#288DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DAB

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DAB	#FFFFFF	#000000	##000000
##288DAB	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8AAD

Deuteranopia (green-blind)

#6A7DAB

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #288dab;
/* rgb */ color: rgb(40, 141, 171);
/* oklch */ color: oklch(60.0% 0.099 222.5);

Tailwind

colors: {
  custom: {
    50: '#76aec4',
    500: '#288dab',
    950: '#000000',
  },
}

SCSS

$custom: #288dab;
$custom-light: #76aec4;
$custom-dark: #000000;

JSON

{
  "hex": "#288dab",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 171
  },
  "hsl": {
    "h": 193.74,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.60026,
    "c": 0.09938,
    "h": 222.5
  },
  "luminance": 0.22441
}

Semantic roles & 50–950 ramp

primary

#288DAB

secondary

#C47F6A

accent

#6843E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288DAB

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

Preview Lab → · Contrast checker → · Palette generator →