#A637B7#A637B7

#A637B7 is a mid, highly saturated purple. Relative luminance 0.143; OKLCH L 54.9% C 0.208 H 322.1°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX#A637B7
RGBrgb(166, 55, 183)
HSLhsl(292, 54%, 47%)
HSVhsv(292, 70%, 72%)
CMYKcmyk(9.3%, 69.9%, 0%, 28.2%)
CIE-LABlab(44.60, 61.84, -45.79)
CIE-LCHlch(44.60, 76.95, 323.48°)
OKLaboklab(54.94% 0.164 -0.1279)
OKLCHoklch(54.94% 0.208 322.1)
XYZxyz(25.6384, 14.2597, 46.1925)
Luminance0.1426 (WCAG relative)
Temperatureneutral
Familypurple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A637B7 #48B737
analogous
#6637B7 #A637B7 #B73788
triadic
#A637B7 #B7A637 #37B7A6
tetradic
#A637B7 #B76637 #48B737 #3788B7
square
#A637B7 #B76637 #48B737 #3788B7
split-complementary
#A637B7 #88B737 #37B766
monochromatic
#511B59 #7B2988 #A637B7 #BF5DCE #D28CDC

Accessibility & contrast

On white

5.45
#A637B7 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.85
#A637B7 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637B7
5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A637B7#FFFFFF#000000##FFFFFF
##A637B71.005.453.855.45
#FFFFFF5.451.0021.001.00
#0000003.8521.001.0021.00
##FFFFFF5.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0461BB
Deuteranopia (green-blind)
#486EB4
Tritanopia (blue-blind)
#A84E73
Achromatopsia (no color)
#696969

Design tokens & code

CSS
--color: #a637b7;
/* rgb */ color: rgb(166, 55, 183);
/* oklch */ color: oklch(54.9% 0.208 322.1);
Tailwind
colors: {
  custom: {
    50: '#c478cd',
    500: '#a637b7',
    950: '#000000',
  },
}
SCSS
$custom: #a637b7;
$custom-light: #c478cd;
$custom-dark: #000000;
JSON
{
  "hex": "#a637b7",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 183
  },
  "hsl": {
    "h": 292.031,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54938,
    "c": 0.20795,
    "h": 322.1
  },
  "luminance": 0.14258
}

Semantic roles & 50–950 ramp

primary
#A637B7
secondary
#8CC783
accent
#DD4B5E
background
#FCF7FC
surface
#F8EEF9
border
#D1C9D2
text
#130A13
muted
#827C82

Preview Lab

Preview with #A637B7

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

Preview Lab → · Contrast checker → · Palette generator →

#A637B7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva