#A637C0#A637C0

#A637C0 is a mid, highly saturated purple. Relative luminance 0.146; OKLCH L 55.5% C 0.216 H 319.3°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#A637C0
RGB	rgb(166, 55, 192)
HSL	hsl(289, 55%, 48%)
HSV	hsv(289, 71%, 75%)
CMYK	cmyk(13.5%, 71.4%, 0%, 24.7%)
CIE-LAB	lab(45.15, 63.51, -50.19)
CIE-LCH	lch(45.15, 80.95, 321.69°)
OKLab	oklab(55.5% 0.1635 -0.1407)
OKLCH	oklch(55.5% 0.216 319.3)
XYZ	xyz(26.6053, 14.6464, 51.2846)
Luminance	0.1464 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A637C0 #51C037

analogous

#6137C0 #A637C0 #C03795

triadic

#A637C0 #C0A637 #37C0A6

tetradic

#A637C0 #C06137 #51C037 #3795C0

square

#A637C0 #C06137 #51C037 #3795C0

split-complementary

#A637C0 #95C037 #37C061

monochromatic

#541C61 #7D2990 #A637C0 #BD62D2 #D192E0

Accessibility & contrast

On white

5.34

#A637C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#A637C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637C0

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A637C0	#FFFFFF	#000000	##FFFFFF
##A637C0	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C4

Deuteranopia (green-blind)

#416FBD

Tritanopia (blue-blind)

#A65278

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #a637c0;
/* rgb */ color: rgb(166, 55, 192);
/* oklch */ color: oklch(55.5% 0.216 319.3);

Tailwind

colors: {
  custom: {
    50: '#c478d4',
    500: '#a637c0',
    950: '#000000',
  },
}

SCSS

$custom: #a637c0;
$custom-light: #c478d4;
$custom-dark: #000000;

JSON

{
  "hex": "#a637c0",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 192
  },
  "hsl": {
    "h": 288.613,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.555,
    "c": 0.21573,
    "h": 319.3
  },
  "luminance": 0.14645
}

Semantic roles & 50–950 ramp

primary

#A637C0

secondary

#95CB88

accent

#DF4965

background

#FCF7FD

surface

#F8EEFA

border

#D1C9D3

text

#130A14

muted

#827C83

Preview Lab

Preview with #A637C0

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

Preview Lab → · Contrast checker → · Palette generator →