#288EA6#288EA6

#288EA6 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.1% C 0.096 H 217.4°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#288EA6
RGB	rgb(40, 142, 166)
HSL	hsl(191, 61%, 40%)
HSV	hsv(191, 76%, 65%)
CMYK	cmyk(75.9%, 14.5%, 0%, 34.9%)
CIE-LAB	lab(54.60, -20.27, -20.91)
CIE-LCH	lch(54.60, 29.12, 225.90°)
OKLab	oklab(60.05% -0.0763 -0.0584)
OKLCH	oklch(60.05% 0.096 217.4)
XYZ	xyz(17.4281, 22.5482, 39.5027)
Luminance	0.2255 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288EA6 #A64028

analogous

#28A67F #288EA6 #284FA6

triadic

#288EA6 #A6288E #8EA628

tetradic

#288EA6 #7F28A6 #A64028 #4FA628

square

#288EA6 #7F28A6 #A64028 #4FA628

split-complementary

#288EA6 #A6284F #A67F28

monochromatic

#103A43 #1C6475 #288EA6 #3BB4D0 #6DC7DC

Accessibility & contrast

On white

3.81

#288EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#288EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288EA6

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288EA6	#FFFFFF	#000000	##000000
##288EA6	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8AA7

Deuteranopia (green-blind)

#6D7DA6

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288ea6;
/* rgb */ color: rgb(40, 142, 166);
/* oklch */ color: oklch(60.1% 0.096 217.4);

Tailwind

colors: {
  custom: {
    50: '#76afc0',
    500: '#288ea6',
    950: '#000000',
  },
}

SCSS

$custom: #288ea6;
$custom-light: #76afc0;
$custom-dark: #000000;

JSON

{
  "hex": "#288ea6",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 166
  },
  "hsl": {
    "h": 191.429,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.60053,
    "c": 0.0961,
    "h": 217.4
  },
  "luminance": 0.2255
}

Semantic roles & 50–950 ramp

primary

#288EA6

secondary

#C27967

accent

#6244E4

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288EA6

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

Preview Lab → · Contrast checker → · Palette generator →