#288FA7#288FA7

#288FA7 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.3% C 0.097 H 217.3°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#288FA7
RGB	rgb(40, 143, 167)
HSL	hsl(191, 61%, 41%)
HSV	hsv(191, 76%, 65%)
CMYK	cmyk(76%, 14.4%, 0%, 34.5%)
CIE-LAB	lab(54.95, -20.47, -20.95)
CIE-LCH	lch(54.95, 29.29, 225.67°)
OKLab	oklab(60.35% -0.0769 -0.0585)
OKLCH	oklch(60.35% 0.097 217.3)
XYZ	xyz(17.6696, 22.8839, 40.0375)
Luminance	0.2289 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288FA7 #A74028

analogous

#28A780 #288FA7 #284FA7

triadic

#288FA7 #A7288F #8FA728

tetradic

#288FA7 #8028A7 #A74028 #4FA728

square

#288FA7 #8028A7 #A74028 #4FA728

split-complementary

#288FA7 #A7284F #A78028

monochromatic

#103A44 #1C6576 #288FA7 #3CB4D0 #6DC7DC

Accessibility & contrast

On white

3.77

#288FA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#288FA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288FA7

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288FA7	#FFFFFF	#000000	##000000
##288FA7	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8BA8

Deuteranopia (green-blind)

#6E7EA7

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #288fa7;
/* rgb */ color: rgb(40, 143, 167);
/* oklch */ color: oklch(60.3% 0.097 217.3);

Tailwind

colors: {
  custom: {
    50: '#76b0c1',
    500: '#288fa7',
    950: '#000000',
  },
}

SCSS

$custom: #288fa7;
$custom-light: #76b0c1;
$custom-dark: #000000;

JSON

{
  "hex": "#288fa7",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 167
  },
  "hsl": {
    "h": 191.339,
    "s": 61.353,
    "l": 40.588
  },
  "oklch": {
    "l": 0.60346,
    "c": 0.09664,
    "h": 217.3
  },
  "luminance": 0.22886
}

Semantic roles & 50–950 ramp

primary

#288FA7

secondary

#C37968

accent

#6243E4

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288FA7

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

Preview Lab → · Contrast checker → · Palette generator →