#287CC9#287CC9

#287CC9 is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.5% C 0.142 H 250.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#287CC9
RGB	rgb(40, 124, 201)
HSL	hsl(209, 67%, 47%)
HSV	hsv(209, 80%, 79%)
CMYK	cmyk(80.1%, 38.3%, 0%, 21.2%)
CIE-LAB	lab(50.78, 2.54, -46.94)
CIE-LCH	lch(50.78, 47.01, 273.10°)
OKLab	oklab(57.55% -0.0478 -0.134)
OKLCH	oklch(57.55% 0.142 250.4)
XYZ	xyz(18.6213, 19.0812, 57.9486)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287CC9 #C97528

analogous

#28C9C6 #287CC9 #282BC9

triadic

#287CC9 #C9287C #7CC928

tetradic

#287CC9 #C628C9 #C97528 #2BC928

square

#287CC9 #C628C9 #C97528 #2BC928

split-complementary

#287CC9 #C9282B #C9C628

monochromatic

#143D63 #1E5D96 #287CC9 #529ADD #85B8E7

Accessibility & contrast

On white

4.36

#287CC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#287CC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287CC9

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287CC9	#FFFFFF	#000000	##000000
##287CC9	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5781CC

Deuteranopia (green-blind)

#3E72C7

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #287cc9;
/* rgb */ color: rgb(40, 124, 201);
/* oklch */ color: oklch(57.5% 0.142 250.4);

Tailwind

colors: {
  custom: {
    50: '#7ba1da',
    500: '#287cc9',
    950: '#000000',
  },
}

SCSS

$custom: #287cc9;
$custom-light: #7ba1da;
$custom-dark: #000000;

JSON

{
  "hex": "#287cc9",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 201
  },
  "hsl": {
    "h": 208.696,
    "s": 66.805,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57549,
    "c": 0.14224,
    "h": 250.4
  },
  "luminance": 0.19083
}

Semantic roles & 50–950 ramp

primary

#287CC9

secondary

#D0A57D

accent

#903EEA

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #287CC9

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

Preview Lab → · Contrast checker → · Palette generator →