#288DB0#288DB0

#288DB0 is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.3% C 0.103 H 226.2°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#288DB0
RGB	rgb(40, 141, 176)
HSL	hsl(195, 63%, 42%)
HSV	hsv(195, 77%, 69%)
CMYK	cmyk(77.3%, 19.9%, 0%, 31%)
CIE-LAB	lab(54.69, -16.34, -26.51)
CIE-LCH	lch(54.69, 31.14, 238.35°)
OKLab	oklab(60.26% -0.0714 -0.0744)
OKLCH	oklch(60.26% 0.103 226.2)
XYZ	xyz(18.2332, 22.6333, 44.4736)
Luminance	0.2263 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DB0 #B04B28

analogous

#28B08F #288DB0 #2849B0

triadic

#288DB0 #B0288D #8DB028

tetradic

#288DB0 #8F28B0 #B04B28 #49B028

square

#288DB0 #8F28B0 #B04B28 #49B028

split-complementary

#288DB0 #B02849 #B08F28

monochromatic

#113D4C #1D657E #288DB0 #41AED4 #73C3DF

Accessibility & contrast

On white

3.80

#288DB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#288DB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DB0

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DB0	#FFFFFF	#000000	##000000
##288DB0	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8AB2

Deuteranopia (green-blind)

#687DB0

Tritanopia (blue-blind)

#009798

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288db0;
/* rgb */ color: rgb(40, 141, 176);
/* oklch */ color: oklch(60.3% 0.103 226.2);

Tailwind

colors: {
  custom: {
    50: '#77aec7',
    500: '#288db0',
    950: '#000000',
  },
}

SCSS

$custom: #288db0;
$custom-light: #77aec7;
$custom-dark: #000000;

JSON

{
  "hex": "#288db0",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 176
  },
  "hsl": {
    "h": 195.441,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.60256,
    "c": 0.1031,
    "h": 226.2
  },
  "luminance": 0.22635
}

Semantic roles & 50–950 ramp

primary

#288DB0

secondary

#C6846D

accent

#6C42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288DB0

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

Preview Lab → · Contrast checker → · Palette generator →