#A637B4#A637B4

#A637B4 is a mid, highly saturated purple. Relative luminance 0.141; OKLCH L 54.8% C 0.205 H 323.0°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#A637B4
RGB	rgb(166, 55, 180)
HSL	hsl(293, 53%, 46%)
HSV	hsv(293, 69%, 71%)
CMYK	cmyk(7.8%, 69.4%, 0%, 29.4%)
CIE-LAB	lab(44.43, 61.30, -44.31)
CIE-LCH	lch(44.43, 75.63, 324.14°)
OKLab	oklab(54.76% 0.1641 -0.1235)
OKLCH	oklch(54.76% 0.205 323)
XYZ	xyz(25.3295, 14.1361, 44.5655)
Luminance	0.1414 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A637B4 #45B437

analogous

#6737B4 #A637B4 #B43783

triadic

#A637B4 #B4A637 #37B4A6

tetradic

#A637B4 #B46737 #45B437 #3783B4

square

#A637B4 #B46737 #45B437 #3783B4

split-complementary

#A637B4 #83B437 #37B467

monochromatic

#501A56 #7B2985 #A637B4 #C05BCD #D28ADB

Accessibility & contrast

On white

5.49

#A637B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#A637B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637B4

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A637B4	#FFFFFF	#000000	##FFFFFF
##A637B4	1.00	5.49	3.83	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F61B8

Deuteranopia (green-blind)

#4A6DB1

Tritanopia (blue-blind)

#A94C72

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #a637b4;
/* rgb */ color: rgb(166, 55, 180);
/* oklch */ color: oklch(54.8% 0.205 323.0);

Tailwind

colors: {
  custom: {
    50: '#c478cb',
    500: '#a637b4',
    950: '#000000',
  },
}

SCSS

$custom: #a637b4;
$custom-light: #c478cb;
$custom-dark: #000000;

JSON

{
  "hex": "#a637b4",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 180
  },
  "hsl": {
    "h": 293.28,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.54756,
    "c": 0.20539,
    "h": 323
  },
  "luminance": 0.14135
}

Semantic roles & 50–950 ramp

primary

#A637B4

secondary

#89C681

accent

#DD4B5B

background

#FCF7FC

surface

#F8EEF8

border

#D1C9D1

text

#130913

muted

#827B82

Preview Lab

Preview with #A637B4

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

Preview Lab → · Contrast checker → · Palette generator →