#287AB0#287AB0

#287AB0 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.114 H 242.2°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX#287AB0
RGBrgb(40, 122, 176)
HSLhsl(204, 63%, 42%)
HSVhsv(204, 77%, 69%)
CMYKcmyk(77.3%, 30.7%, 0%, 31%)
CIE-LABlab(48.89, -5.53, -35.56)
CIE-LCHlch(48.89, 35.99, 261.16°)
OKLaboklab(55.63% -0.053 -0.1008)
OKLCHoklch(55.63% 0.114 242.2)
XYZxyz(15.6680, 17.5029, 43.6185)
Luminance0.1751 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#287AB0 #B05E28
analogous
#28B0A2 #287AB0 #2836B0
triadic
#287AB0 #B0287A #7AB028
tetradic
#287AB0 #A228B0 #B05E28 #36B028
square
#287AB0 #A228B0 #B05E28 #36B028
split-complementary
#287AB0 #B02836 #B0A228
monochromatic
#11354C #1D577E #287AB0 #419AD4 #73B4DF

Accessibility & contrast

On white

4.67
#287AB0 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.50
#287AB0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287AB0
4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##287AB0#FFFFFF#000000##FFFFFF
##287AB01.004.674.504.67
#FFFFFF4.671.0021.001.00
#0000004.5021.001.0021.00
##FFFFFF4.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#617BB2
Deuteranopia (green-blind)
#4E6EAF
Tritanopia (blue-blind)
#00878D
Achromatopsia (no color)
#747474

Design tokens & code

CSS
--color: #287ab0;
/* rgb */ color: rgb(40, 122, 176);
/* oklch */ color: oklch(55.6% 0.114 242.2);
Tailwind
colors: {
  custom: {
    50: '#76a0c8',
    500: '#287ab0',
    950: '#000000',
  },
}
SCSS
$custom: #287ab0;
$custom-light: #76a0c8;
$custom-dark: #000000;
JSON
{
  "hex": "#287ab0",
  "rgb": {
    "r": 40,
    "g": 122,
    "b": 176
  },
  "hsl": {
    "h": 203.824,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55633,
    "c": 0.11384,
    "h": 242.2
  },
  "luminance": 0.17505
}

Semantic roles & 50–950 ramp

primary
#287AB0
secondary
#C6916D
accent
#8342E6
background
#F7F9FC
surface
#EEF2F8
border
#C9CCD1
text
#0A0E13
muted
#7C7E82

Preview Lab

Preview with #287AB0

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

Preview Lab → · Contrast checker → · Palette generator →

#287AB0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva