#A637C7#A637C7

#A637C7 is a mid, highly saturated purple. Relative luminance 0.150; OKLCH L 56.0% C 0.222 H 317.3°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#A637C7
RGB	rgb(166, 55, 199)
HSL	hsl(286, 57%, 50%)
HSV	hsv(286, 72%, 78%)
CMYK	cmyk(16.6%, 72.4%, 0%, 22%)
CIE-LAB	lab(45.59, 64.84, -53.55)
CIE-LCH	lch(45.59, 84.10, 320.45°)
OKLab	oklab(55.95% 0.1629 -0.1506)
OKLCH	oklch(55.95% 0.222 317.3)
XYZ	xyz(27.3994, 14.9641, 55.4668)
Luminance	0.1496 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A637C7 #58C737

analogous

#5E37C7 #A637C7 #C737A0

triadic

#A637C7 #C7A637 #37C7A6

tetradic

#A637C7 #C75E37 #58C737 #37A0C7

square

#A637C7 #C75E37 #58C737 #37A0C7

split-complementary

#A637C7 #A0C737 #37C75E

monochromatic

#561C67 #7E2A97 #A637C7 #BC66D5 #D196E2

Accessibility & contrast

On white

5.26

#A637C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#A637C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637C7

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A637C7	#FFFFFF	#000000	##FFFFFF
##A637C7	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CB

Deuteranopia (green-blind)

#3A6FC4

Tritanopia (blue-blind)

#A4557C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #a637c7;
/* rgb */ color: rgb(166, 55, 199);
/* oklch */ color: oklch(56.0% 0.222 317.3);

Tailwind

colors: {
  custom: {
    50: '#c478d9',
    500: '#a637c7',
    950: '#000000',
  },
}

SCSS

$custom: #a637c7;
$custom-light: #c478d9;
$custom-dark: #000000;

JSON

{
  "hex": "#a637c7",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 199
  },
  "hsl": {
    "h": 286.25,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55953,
    "c": 0.22184,
    "h": 317.3
  },
  "luminance": 0.14963
}

Semantic roles & 50–950 ramp

primary

#A637C7

secondary

#9BCD8C

accent

#E0486B

background

#FCF7FD

surface

#F8EEFA

border

#D1C9D3

text

#130A15

muted

#827C83

Preview Lab

Preview with #A637C7

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

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