#288EA8#288EA8

#288EA8 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.1% C 0.097 H 219.1°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#288EA8
RGB	rgb(40, 142, 168)
HSL	hsl(192, 62%, 41%)
HSV	hsv(192, 76%, 66%)
CMYK	cmyk(76.2%, 15.5%, 0%, 34.1%)
CIE-LAB	lab(54.68, -19.60, -21.94)
CIE-LCH	lch(54.68, 29.42, 228.23°)
OKLab	oklab(60.14% -0.0755 -0.0613)
OKLCH	oklch(60.14% 0.097 219.1)
XYZ	xyz(17.6130, 22.6222, 40.4764)
Luminance	0.2262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288EA8 #A84228

analogous

#28A882 #288EA8 #284EA8

triadic

#288EA8 #A8288E #8EA828

tetradic

#288EA8 #8228A8 #A84228 #4EA828

square

#288EA8 #8228A8 #A84228 #4EA828

split-complementary

#288EA8 #A8284E #A88228

monochromatic

#103A45 #1C6477 #288EA8 #3DB3D1 #6EC6DC

Accessibility & contrast

On white

3.80

#288EA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#288EA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288EA8

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288EA8	#FFFFFF	#000000	##000000
##288EA8	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8AA9

Deuteranopia (green-blind)

#6C7DA8

Tritanopia (blue-blind)

#009796

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288ea8;
/* rgb */ color: rgb(40, 142, 168);
/* oklch */ color: oklch(60.1% 0.097 219.1);

Tailwind

colors: {
  custom: {
    50: '#76afc2',
    500: '#288ea8',
    950: '#000000',
  },
}

SCSS

$custom: #288ea8;
$custom-light: #76afc2;
$custom-dark: #000000;

JSON

{
  "hex": "#288ea8",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 168
  },
  "hsl": {
    "h": 192.188,
    "s": 61.538,
    "l": 40.784
  },
  "oklch": {
    "l": 0.60141,
    "c": 0.09728,
    "h": 219.1
  },
  "luminance": 0.22624
}

Semantic roles & 50–950 ramp

primary

#288EA8

secondary

#C37B69

accent

#6443E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288EA8

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

Preview Lab → · Contrast checker → · Palette generator →