#288EA9#288EA9

#288EA9 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.2% C 0.098 H 219.9°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#288EA9
RGB	rgb(40, 142, 169)
HSL	hsl(193, 62%, 41%)
HSV	hsv(193, 76%, 66%)
CMYK	cmyk(76.3%, 16%, 0%, 33.7%)
CIE-LAB	lab(54.72, -19.26, -22.46)
CIE-LCH	lch(54.72, 29.59, 229.37°)
OKLab	oklab(60.19% -0.0751 -0.0628)
OKLCH	oklch(60.19% 0.098 219.9)
XYZ	xyz(17.7065, 22.6596, 40.9690)
Luminance	0.2266 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288EA9 #A94328

analogous

#28A983 #288EA9 #284DA9

triadic

#288EA9 #A9288E #8EA928

tetradic

#288EA9 #8328A9 #A94328 #4DA928

square

#288EA9 #8328A9 #A94328 #4DA928

split-complementary

#288EA9 #A9284D #A98328

monochromatic

#113B46 #1C6478 #288EA9 #3DB2D1 #6FC6DD

Accessibility & contrast

On white

3.80

#288EA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#288EA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288EA9

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288EA9	#FFFFFF	#000000	##000000
##288EA9	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8AAA

Deuteranopia (green-blind)

#6C7DA9

Tritanopia (blue-blind)

#009797

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288ea9;
/* rgb */ color: rgb(40, 142, 169);
/* oklch */ color: oklch(60.2% 0.098 219.9);

Tailwind

colors: {
  custom: {
    50: '#76afc2',
    500: '#288ea9',
    950: '#000000',
  },
}

SCSS

$custom: #288ea9;
$custom-light: #76afc2;
$custom-dark: #000000;

JSON

{
  "hex": "#288ea9",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 169
  },
  "hsl": {
    "h": 192.558,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.60185,
    "c": 0.0979,
    "h": 219.9
  },
  "luminance": 0.22662
}

Semantic roles & 50–950 ramp

primary

#288EA9

secondary

#C47C69

accent

#6543E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288EA9

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

Preview Lab → · Contrast checker → · Palette generator →