#288DAF#288DAF

#288DAF is a mid, moderate cyan. Relative luminance 0.226; OKLCH L 60.2% C 0.102 H 225.5°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#288DAF
RGB	rgb(40, 141, 175)
HSL	hsl(195, 63%, 42%)
HSV	hsv(195, 77%, 69%)
CMYK	cmyk(77.1%, 19.4%, 0%, 31.4%)
CIE-LAB	lab(54.65, -16.69, -26.00)
CIE-LCH	lch(54.65, 30.89, 237.31°)
OKLab	oklab(60.21% -0.0718 -0.0729)
OKLCH	oklch(60.21% 0.102 225.5)
XYZ	xyz(18.1346, 22.5938, 43.9544)
Luminance	0.2260 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288DAF #AF4A28

analogous

#28AF8E #288DAF #284AAF

triadic

#288DAF #AF288D #8DAF28

tetradic

#288DAF #8E28AF #AF4A28 #4AAF28

square

#288DAF #8E28AF #AF4A28 #4AAF28

split-complementary

#288DAF #AF284A #AF8E28

monochromatic

#113D4B #1D657D #288DAF #41AFD4 #73C4DF

Accessibility & contrast

On white

3.80

#288DAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#288DAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288DAF

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288DAF	#FFFFFF	#000000	##000000
##288DAF	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)

#7A8AB1

Deuteranopia (green-blind)

#687DAF

Tritanopia (blue-blind)

#009798

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #288daf;
/* rgb */ color: rgb(40, 141, 175);
/* oklch */ color: oklch(60.2% 0.102 225.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#288daf",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 175
  },
  "hsl": {
    "h": 195.111,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.60209,
    "c": 0.10231,
    "h": 225.5
  },
  "luminance": 0.22596
}

Semantic roles & 50–950 ramp

primary

#288DAF

secondary

#C6836D

accent

#6B42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288DAF

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

Preview Lab → · Contrast checker → · Palette generator →