#288CA7#288CA7

#288CA7 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.6% C 0.097 H 220.3°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#288CA7
RGB	rgb(40, 140, 167)
HSL	hsl(193, 61%, 41%)
HSV	hsv(193, 76%, 65%)
CMYK	cmyk(76%, 16.2%, 0%, 34.5%)
CIE-LAB	lab(54.02, -18.87, -22.38)
CIE-LCH	lch(54.02, 29.27, 229.87°)
OKLab	oklab(59.6% -0.0739 -0.0626)
OKLCH	oklch(59.6% 0.097 220.3)
XYZ	xyz(17.2253, 21.9952, 39.8894)
Luminance	0.2200 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288CA7 #A74328

analogous

#28A782 #288CA7 #284CA7

triadic

#288CA7 #A7288C #8CA728

tetradic

#288CA7 #8228A7 #A74328 #4CA728

square

#288CA7 #8228A7 #A74328 #4CA728

split-complementary

#288CA7 #A7284C #A78228

monochromatic

#103944 #1C6376 #288CA7 #3CB1D0 #6DC5DC

Accessibility & contrast

On white

3.89

#288CA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#288CA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288CA7

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288CA7	#FFFFFF	#000000	##000000
##288CA7	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C88A8

Deuteranopia (green-blind)

#6A7CA7

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288ca7;
/* rgb */ color: rgb(40, 140, 167);
/* oklch */ color: oklch(59.6% 0.097 220.3);

Tailwind

colors: {
  custom: {
    50: '#76adc1',
    500: '#288ca7',
    950: '#000000',
  },
}

SCSS

$custom: #288ca7;
$custom-light: #76adc1;
$custom-dark: #000000;

JSON

{
  "hex": "#288ca7",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 167
  },
  "hsl": {
    "h": 192.756,
    "s": 61.353,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59598,
    "c": 0.09684,
    "h": 220.3
  },
  "luminance": 0.21997
}

Semantic roles & 50–950 ramp

primary

#288CA7

secondary

#C37B68

accent

#6643E4

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288CA7

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

Preview Lab → · Contrast checker → · Palette generator →