#288EAF#288EAF

#288EAF is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.5% C 0.102 H 224.5°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#288EAF
RGB	rgb(40, 142, 175)
HSL	hsl(195, 63%, 42%)
HSV	hsv(195, 77%, 69%)
CMYK	cmyk(77.1%, 18.9%, 0%, 31.4%)
CIE-LAB	lab(54.96, -17.23, -25.52)
CIE-LCH	lch(54.96, 30.80, 235.98°)
OKLab	oklab(60.46% -0.0728 -0.0716)
OKLCH	oklch(60.46% 0.102 224.5)
XYZ	xyz(18.2827, 22.8901, 44.0038)
Luminance	0.2289 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288EAF #AF4928

analogous

#28AF8D #288EAF #284AAF

triadic

#288EAF #AF288E #8EAF28

tetradic

#288EAF #8D28AF #AF4928 #4AAF28

square

#288EAF #8D28AF #AF4928 #4AAF28

split-complementary

#288EAF #AF284A #AF8D28

monochromatic

#113D4B #1D667D #288EAF #41B0D4 #73C4DF

Accessibility & contrast

On white

3.76

#288EAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#288EAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288EAF

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288EAF	#FFFFFF	#000000	##000000
##288EAF	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8BB1

Deuteranopia (green-blind)

#6A7EAF

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #288eaf;
/* rgb */ color: rgb(40, 142, 175);
/* oklch */ color: oklch(60.5% 0.102 224.5);

Tailwind

colors: {
  custom: {
    50: '#77afc7',
    500: '#288eaf',
    950: '#000000',
  },
}

SCSS

$custom: #288eaf;
$custom-light: #77afc7;
$custom-dark: #000000;

JSON

{
  "hex": "#288eaf",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 175
  },
  "hsl": {
    "h": 194.667,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.60456,
    "c": 0.10205,
    "h": 224.5
  },
  "luminance": 0.22892
}

Semantic roles & 50–950 ramp

primary

#288EAF

secondary

#C6836D

accent

#6A42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288EAF

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

Preview Lab → · Contrast checker → · Palette generator →