#A637CA#A637CA

#A637CA is a mid, highly saturated purple. Relative luminance 0.151; OKLCH L 56.2% C 0.224 H 316.4°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#A637CA
RGB	rgb(166, 55, 202)
HSL	hsl(285, 58%, 50%)
HSV	hsv(285, 73%, 79%)
CMYK	cmyk(17.8%, 72.8%, 0%, 20.8%)
CIE-LAB	lab(45.78, 65.42, -54.98)
CIE-LCH	lch(45.78, 85.45, 319.96°)
OKLab	oklab(56.15% 0.1626 -0.1547)
OKLCH	oklch(56.15% 0.224 316.4)
XYZ	xyz(27.7511, 15.1048, 57.3194)
Luminance	0.1510 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A637CA #5BCA37

analogous

#5C37CA #A637CA #CA37A5

triadic

#A637CA #CAA637 #37CAA6

tetradic

#A637CA #CA5C37 #5BCA37 #37A5CA

square

#A637CA #CA5C37 #5BCA37 #37A5CA

split-complementary

#A637CA #A5CA37 #37CA5C

monochromatic

#571C6A #7F299B #A637CA #BC67D7 #D198E4

Accessibility & contrast

On white

5.22

#A637CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#A637CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637CA

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A637CA	#FFFFFF	#000000	##FFFFFF
##A637CA	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CE

Deuteranopia (green-blind)

#3770C7

Tritanopia (blue-blind)

#A4567E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #a637ca;
/* rgb */ color: rgb(166, 55, 202);
/* oklch */ color: oklch(56.2% 0.224 316.4);

Tailwind

colors: {
  custom: {
    50: '#c578db',
    500: '#a637ca',
    950: '#000000',
  },
}

SCSS

$custom: #a637ca;
$custom-light: #c578db;
$custom-dark: #000000;

JSON

{
  "hex": "#a637ca",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 202
  },
  "hsl": {
    "h": 285.306,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56151,
    "c": 0.22446,
    "h": 316.4
  },
  "luminance": 0.15104
}

Semantic roles & 50–950 ramp

primary

#A637CA

secondary

#9ECF8E

accent

#E1466C

background

#FCF7FD

surface

#F8EEFB

border

#D1C9D4

text

#130A15

muted

#827C83

Preview Lab

Preview with #A637CA

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

Preview Lab → · Contrast checker → · Palette generator →