#A637C4#A637C4

#A637C4 is a mid, highly saturated purple. Relative luminance 0.148; OKLCH L 55.8% C 0.219 H 318.1°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#A637C4
RGB	rgb(166, 55, 196)
HSL	hsl(287, 56%, 49%)
HSV	hsv(287, 72%, 77%)
CMYK	cmyk(15.3%, 71.9%, 0%, 23.1%)
CIE-LAB	lab(45.40, 64.27, -52.11)
CIE-LCH	lch(45.40, 82.74, 320.96°)
OKLab	oklab(55.76% 0.1632 -0.1463)
OKLCH	oklch(55.76% 0.219 318.1)
XYZ	xyz(27.0545, 14.8261, 53.6505)
Luminance	0.1482 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A637C4 #55C437

analogous

#6037C4 #A637C4 #C4379C

triadic

#A637C4 #C4A637 #37C4A6

tetradic

#A637C4 #C46037 #55C437 #379CC4

square

#A637C4 #C46037 #55C437 #379CC4

split-complementary

#A637C4 #9CC437 #37C460

monochromatic

#551C64 #7E2A94 #A637C4 #BC65D4 #D194E1

Accessibility & contrast

On white

5.30

#A637C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#A637C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A637C4

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A637C4	#FFFFFF	#000000	##FFFFFF
##A637C4	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C8

Deuteranopia (green-blind)

#3D6FC1

Tritanopia (blue-blind)

#A5537A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #a637c4;
/* rgb */ color: rgb(166, 55, 196);
/* oklch */ color: oklch(55.8% 0.219 318.1);

Tailwind

colors: {
  custom: {
    50: '#c478d6',
    500: '#a637c4',
    950: '#000000',
  },
}

SCSS

$custom: #a637c4;
$custom-light: #c478d6;
$custom-dark: #000000;

JSON

{
  "hex": "#a637c4",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 196
  },
  "hsl": {
    "h": 287.234,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55757,
    "c": 0.21921,
    "h": 318.1
  },
  "luminance": 0.14825
}

Semantic roles & 50–950 ramp

primary

#A637C4

secondary

#99CC8B

accent

#DF4868

background

#FCF7FD

surface

#F8EEFA

border

#D1C9D3

text

#130A14

muted

#827C83

Preview Lab

Preview with #A637C4

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

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