#288DA7#288DA7

#288DA7 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.8% C 0.097 H 219.3°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#288DA7
RGB	rgb(40, 141, 167)
HSL	hsl(192, 61%, 41%)
HSV	hsv(192, 76%, 65%)
CMYK	cmyk(76%, 15.6%, 0%, 34.5%)
CIE-LAB	lab(54.33, -19.40, -21.90)
CIE-LCH	lch(54.33, 29.26, 228.47°)
OKLab	oklab(59.85% -0.0749 -0.0612)
OKLCH	oklch(59.85% 0.097 219.3)
XYZ	xyz(17.3721, 22.2888, 39.9383)
Luminance	0.2229 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DA7 #A74228

analogous

#28A781 #288DA7 #284EA7

triadic

#288DA7 #A7288D #8DA728

tetradic

#288DA7 #8128A7 #A74228 #4EA728

square

#288DA7 #8128A7 #A74228 #4EA728

split-complementary

#288DA7 #A7284E #A78128

monochromatic

#103A44 #1C6376 #288DA7 #3CB2D0 #6DC5DC

Accessibility & contrast

On white

3.85

#288DA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#288DA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DA7

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DA7	#FFFFFF	#000000	##000000
##288DA7	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D89A8

Deuteranopia (green-blind)

#6C7DA7

Tritanopia (blue-blind)

#009695

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #288da7;
/* rgb */ color: rgb(40, 141, 167);
/* oklch */ color: oklch(59.8% 0.097 219.3);

Tailwind

colors: {
  custom: {
    50: '#76aec1',
    500: '#288da7',
    950: '#000000',
  },
}

SCSS

$custom: #288da7;
$custom-light: #76aec1;
$custom-dark: #000000;

JSON

{
  "hex": "#288da7",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 167
  },
  "hsl": {
    "h": 192.283,
    "s": 61.353,
    "l": 40.588
  },
  "oklch": {
    "l": 0.59847,
    "c": 0.09674,
    "h": 219.3
  },
  "luminance": 0.22291
}

Semantic roles & 50–950 ramp

primary

#288DA7

secondary

#C37B68

accent

#6443E4

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288DA7

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

Preview Lab → · Contrast checker → · Palette generator →