#287EB0#287EB0

#287EB0 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.111 H 239.2°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#287EB0
RGB	rgb(40, 126, 176)
HSL	hsl(202, 63%, 42%)
HSV	hsv(202, 77%, 69%)
CMYK	cmyk(77.3%, 28.4%, 0%, 31%)
CIE-LAB	lab(50.10, -7.88, -33.65)
CIE-LCH	lch(50.10, 34.56, 256.82°)
OKLab	oklab(56.6% -0.0568 -0.0951)
OKLCH	oklch(56.6% 0.111 239.2)
XYZ	xyz(16.1693, 18.5055, 43.7856)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EB0 #B05A28

analogous

#28B09E #287EB0 #283AB0

triadic

#287EB0 #B0287E #7EB028

tetradic

#287EB0 #9E28B0 #B05A28 #3AB028

square

#287EB0 #9E28B0 #B05A28 #3AB028

split-complementary

#287EB0 #B0283A #B09E28

monochromatic

#11374C #1D5A7E #287EB0 #419ED4 #73B7DF

Accessibility & contrast

On white

4.47

#287EB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#287EB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EB0

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EB0	#FFFFFF	#000000	##000000
##287EB0	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667EB2

Deuteranopia (green-blind)

#5472AF

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #287eb0;
/* rgb */ color: rgb(40, 126, 176);
/* oklch */ color: oklch(56.6% 0.111 239.2);

Tailwind

colors: {
  custom: {
    50: '#76a3c8',
    500: '#287eb0',
    950: '#000000',
  },
}

SCSS

$custom: #287eb0;
$custom-light: #76a3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#287eb0",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 176
  },
  "hsl": {
    "h": 202.059,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.56597,
    "c": 0.11083,
    "h": 239.2
  },
  "luminance": 0.18507
}

Semantic roles & 50–950 ramp

primary

#287EB0

secondary

#C68E6D

accent

#7E42E6

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #287EB0

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

Preview Lab → · Contrast checker → · Palette generator →