#288FA9#288FA9

#288FA9 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.4% C 0.098 H 218.9°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#288FA9
RGB	rgb(40, 143, 169)
HSL	hsl(192, 62%, 41%)
HSV	hsv(192, 76%, 66%)
CMYK	cmyk(76.3%, 15.4%, 0%, 33.7%)
CIE-LAB	lab(55.03, -19.80, -21.98)
CIE-LCH	lch(55.03, 29.58, 227.99°)
OKLab	oklab(60.43% -0.0761 -0.0614)
OKLCH	oklch(60.43% 0.098 218.9)
XYZ	xyz(17.8559, 22.9585, 41.0188)
Luminance	0.2296 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288FA9 #A94228

analogous

#28A982 #288FA9 #284EA9

triadic

#288FA9 #A9288F #8FA928

tetradic

#288FA9 #8228A9 #A94228 #4EA928

square

#288FA9 #8228A9 #A94228 #4EA928

split-complementary

#288FA9 #A9284E #A98228

monochromatic

#113B46 #1C6578 #288FA9 #3DB3D1 #6FC7DD

Accessibility & contrast

On white

3.76

#288FA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#288FA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288FA9

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288FA9	#FFFFFF	#000000	##000000
##288FA9	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8BAA

Deuteranopia (green-blind)

#6D7EA9

Tritanopia (blue-blind)

#009897

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #288fa9;
/* rgb */ color: rgb(40, 143, 169);
/* oklch */ color: oklch(60.4% 0.098 218.9);

Tailwind

colors: {
  custom: {
    50: '#76b0c2',
    500: '#288fa9',
    950: '#000000',
  },
}

SCSS

$custom: #288fa9;
$custom-light: #76b0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#288fa9",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 169
  },
  "hsl": {
    "h": 192.093,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.60434,
    "c": 0.09781,
    "h": 218.9
  },
  "luminance": 0.22961
}

Semantic roles & 50–950 ramp

primary

#288FA9

secondary

#C47B69

accent

#6443E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288FA9

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

Preview Lab → · Contrast checker → · Palette generator →