#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
RGBrgb(40, 124, 201)
HSLhsl(209, 67%, 47%)
HSVhsv(209, 80%, 79%)
CMYKcmyk(80.1%, 38.3%, 0%, 21.2%)
CIE-LABlab(50.78, 2.54, -46.94)
CIE-LCHlch(50.78, 47.01, 273.10°)
OKLaboklab(57.55% -0.0478 -0.134)
OKLCHoklch(57.55% 0.142 250.4)
XYZxyz(18.6213, 19.0812, 57.9486)
Luminance0.1908 (WCAG relative)
Temperaturecool
Familycyan

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
##287CC91.004.364.824.82
#FFFFFF4.361.0021.0021.00
#0000004.8221.001.001.00
##0000004.8221.001.001.00

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 →

#287CC9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva