#288BA0#288BA0

#288BA0 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.0% C 0.093 H 215.3°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#288BA0
RGB	rgb(40, 139, 160)
HSL	hsl(191, 60%, 39%)
HSV	hsv(191, 75%, 63%)
CMYK	cmyk(75%, 13.1%, 0%, 37.3%)
CIE-LAB	lab(53.44, -20.67, -19.24)
CIE-LCH	lch(53.44, 28.24, 222.94°)
OKLab	oklab(59.04% -0.0757 -0.0537)
OKLCH	oklch(59.04% 0.093 215.3)
XYZ	xyz(16.4502, 21.4525, 36.5246)
Luminance	0.2145 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BA0 #A03D28

analogous

#28A079 #288BA0 #284FA0

triadic

#288BA0 #A0288B #8BA028

tetradic

#288BA0 #7928A0 #A03D28 #4FA028

square

#288BA0 #7928A0 #A03D28 #4FA028

split-complementary

#288BA0 #A0284F #A07928

monochromatic

#10363E #1C606F #288BA0 #38B3CD #69C6D9

Accessibility & contrast

On white

3.97

#288BA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#288BA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BA0

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BA0	#FFFFFF	#000000	##000000
##288BA0	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C86A1

Deuteranopia (green-blind)

#6C7AA0

Tritanopia (blue-blind)

#009392

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288ba0;
/* rgb */ color: rgb(40, 139, 160);
/* oklch */ color: oklch(59.0% 0.093 215.3);

Tailwind

colors: {
  custom: {
    50: '#75adbc',
    500: '#288ba0',
    950: '#000000',
  },
}

SCSS

$custom: #288ba0;
$custom-light: #75adbc;
$custom-dark: #000000;

JSON

{
  "hex": "#288ba0",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 160
  },
  "hsl": {
    "h": 190.5,
    "s": 60,
    "l": 39.216
  },
  "oklch": {
    "l": 0.59042,
    "c": 0.09283,
    "h": 215.3
  },
  "luminance": 0.21454
}

Semantic roles & 50–950 ramp

primary

#288BA0

secondary

#C07464

accent

#6045E3

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288BA0

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

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