#A637DB#A637DB

#A637DB is a mid, highly saturated purple. Relative luminance 0.160; OKLCH L 57.3% C 0.240 H 312.0°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX#A637DB
RGBrgb(166, 55, 219)
HSLhsl(281, 69%, 54%)
HSVhsv(281, 75%, 86%)
CMYKcmyk(24.2%, 74.9%, 0%, 14.1%)
CIE-LABlab(46.91, 68.78, -62.91)
CIE-LCHlch(46.91, 93.21, 317.55°)
OKLaboklab(57.32% 0.1602 -0.178)
OKLCHoklch(57.32% 0.24 312)
XYZxyz(29.8759, 15.9547, 68.5099)
Luminance0.1595 (WCAG relative)
Temperaturecool
Familypurple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A637DB #6CDB37
analogous
#5437DB #A637DB #DB37BE
triadic
#A637DB #DBA637 #37DBA6
tetradic
#A637DB #DB5437 #6CDB37 #37BEDB
square
#A637DB #DB5437 #6CDB37 #37BEDB
split-complementary
#A637DB #BEDB37 #37DB54
monochromatic
#5E1780 #8520B4 #A637DB #BD6BE4 #D49FEE

Accessibility & contrast

On white

5.01
#A637DB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.19
#A637DB on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637DB
5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A637DB#FFFFFF#000000##FFFFFF
##A637DB1.005.014.195.01
#FFFFFF5.011.0021.001.00
#0000004.1921.001.0021.00
##FFFFFF5.011.0021.001.00

Color blindness preview

Protanopia (red-blind)
#006AE0
Deuteranopia (green-blind)
#1C71D8
Tritanopia (blue-blind)
#A05D87
Achromatopsia (no color)
#6F6F6F

Design tokens & code

CSS
--color: #a637db;
/* rgb */ color: rgb(166, 55, 219);
/* oklch */ color: oklch(57.3% 0.240 312.0);
Tailwind
colors: {
  custom: {
    50: '#c579e7',
    500: '#a637db',
    950: '#000000',
  },
}
SCSS
$custom: #a637db;
$custom-light: #c579e7;
$custom-dark: #000000;
JSON
{
  "hex": "#a637db",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 219
  },
  "hsl": {
    "h": 280.61,
    "s": 69.492,
    "l": 53.725
  },
  "oklch": {
    "l": 0.57317,
    "c": 0.23951,
    "h": 312
  },
  "luminance": 0.15954
}

Semantic roles & 50–950 ramp

primary
#A637DB
secondary
#AADA94
accent
#EC3B75
background
#FCF7FE
surface
#F9EEFD
border
#D2C9D5
text
#140A16
muted
#827C84

Preview Lab

Preview with #A637DB

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

Preview Lab → · Contrast checker → · Palette generator →

#A637DB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva