#288AAB#288AAB

#288AAB is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.3% C 0.100 H 225.3°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#288AAB
RGB	rgb(40, 138, 171)
HSL	hsl(195, 62%, 41%)
HSV	hsv(195, 77%, 67%)
CMYK	cmyk(76.6%, 19.3%, 0%, 32.9%)
CIE-LAB	lab(53.56, -16.42, -25.39)
CIE-LCH	lch(53.56, 30.23, 237.10°)
OKLab	oklab(59.28% -0.0703 -0.0712)
OKLCH	oklch(59.28% 0.1 225.3)
XYZ	xyz(17.3112, 21.5663, 41.7705)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288AAB #AB4928

analogous

#28AB8B #288AAB #2848AB

triadic

#288AAB #AB288A #8AAB28

tetradic

#288AAB #8B28AB #AB4928 #48AB28

square

#288AAB #8B28AB #AB4928 #48AB28

split-complementary

#288AAB #AB2848 #AB8B28

monochromatic

#113A48 #1C6279 #288AAB #3EADD2 #70C2DE

Accessibility & contrast

On white

3.95

#288AAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#288AAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288AAB

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288AAB	#FFFFFF	#000000	##000000
##288AAB	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7887AD

Deuteranopia (green-blind)

#667AAB

Tritanopia (blue-blind)

#009495

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288aab;
/* rgb */ color: rgb(40, 138, 171);
/* oklch */ color: oklch(59.3% 0.100 225.3);

Tailwind

colors: {
  custom: {
    50: '#76acc4',
    500: '#288aab',
    950: '#000000',
  },
}

SCSS

$custom: #288aab;
$custom-light: #76acc4;
$custom-dark: #000000;

JSON

{
  "hex": "#288aab",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 171
  },
  "hsl": {
    "h": 195.115,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.59284,
    "c": 0.10008,
    "h": 225.3
  },
  "luminance": 0.21568
}

Semantic roles & 50–950 ramp

primary

#288AAB

secondary

#C4816A

accent

#6C43E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288AAB

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

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