#288DA9#288DA9

#288DA9 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 59.9% C 0.098 H 220.9°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#288DA9
RGB	rgb(40, 141, 169)
HSL	hsl(193, 62%, 41%)
HSV	hsv(193, 76%, 66%)
CMYK	cmyk(76.3%, 16.6%, 0%, 33.7%)
CIE-LAB	lab(54.41, -18.73, -22.93)
CIE-LCH	lch(54.41, 29.61, 230.76°)
OKLab	oklab(59.94% -0.0741 -0.0641)
OKLCH	oklch(59.94% 0.098 220.9)
XYZ	xyz(17.5584, 22.3633, 40.9196)
Luminance	0.2236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DA9 #A94428

analogous

#28A984 #288DA9 #284DA9

triadic

#288DA9 #A9288D #8DA928

tetradic

#288DA9 #8428A9 #A94428 #4DA928

square

#288DA9 #8428A9 #A94428 #4DA928

split-complementary

#288DA9 #A9284D #A98428

monochromatic

#113A46 #1C6478 #288DA9 #3DB1D1 #6FC5DD

Accessibility & contrast

On white

3.84

#288DA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#288DA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DA9

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DA9	#FFFFFF	#000000	##000000
##288DA9	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C89AA

Deuteranopia (green-blind)

#6B7DA9

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #288da9;
/* rgb */ color: rgb(40, 141, 169);
/* oklch */ color: oklch(59.9% 0.098 220.9);

Tailwind

colors: {
  custom: {
    50: '#76aec2',
    500: '#288da9',
    950: '#000000',
  },
}

SCSS

$custom: #288da9;
$custom-light: #76aec2;
$custom-dark: #000000;

JSON

{
  "hex": "#288da9",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 169
  },
  "hsl": {
    "h": 193.023,
    "s": 61.722,
    "l": 40.98
  },
  "oklch": {
    "l": 0.59936,
    "c": 0.09802,
    "h": 220.9
  },
  "luminance": 0.22365
}

Semantic roles & 50–950 ramp

primary

#288DA9

secondary

#C47D69

accent

#6643E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288DA9

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

Preview Lab → · Contrast checker → · Palette generator →