#A637BC#A637BC

#A637BC is a mid, highly saturated purple. Relative luminance 0.145; OKLCH L 55.2% C 0.212 H 320.5°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#A637BC
RGB	rgb(166, 55, 188)
HSL	hsl(290, 55%, 48%)
HSV	hsv(290, 71%, 74%)
CMYK	cmyk(11.7%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(44.90, 62.77, -48.24)
CIE-LCH	lch(44.90, 79.16, 322.45°)
OKLab	oklab(55.25% 0.1638 -0.135)
OKLCH	oklch(55.25% 0.212 320.5)
XYZ	xyz(26.1681, 14.4715, 48.9821)
Luminance	0.1447 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A637BC #4DBC37

analogous

#6337BC #A637BC #BC3790

triadic

#A637BC #BCA637 #37BCA6

tetradic

#A637BC #BC6337 #4DBC37 #3790BC

square

#A637BC #BC6337 #4DBC37 #3790BC

split-complementary

#A637BC #90BC37 #37BC63

monochromatic

#521B5D #7C298D #A637BC #BE60D0 #D18FDE

Accessibility & contrast

On white

5.39

#A637BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#A637BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637BC

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A637BC	#FFFFFF	#000000	##FFFFFF
##A637BC	1.00	5.39	3.89	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#446EB9

Tritanopia (blue-blind)

#A75076

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #a637bc;
/* rgb */ color: rgb(166, 55, 188);
/* oklch */ color: oklch(55.2% 0.212 320.5);

Tailwind

colors: {
  custom: {
    50: '#c478d1',
    500: '#a637bc',
    950: '#000000',
  },
}

SCSS

$custom: #a637bc;
$custom-light: #c478d1;
$custom-dark: #000000;

JSON

{
  "hex": "#a637bc",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 290.075,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.55247,
    "c": 0.21225,
    "h": 320.5
  },
  "luminance": 0.1447
}

Semantic roles & 50–950 ramp

primary

#A637BC

secondary

#91C986

accent

#DE4A62

background

#FCF7FC

surface

#F8EEF9

border

#D1C9D2

text

#130A14

muted

#827C82

Preview Lab

Preview with #A637BC

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

Preview Lab → · Contrast checker → · Palette generator →