#400C57#400C57

#400C57 is a dark, vivid purple. Relative luminance 0.020; OKLCH L 29.0% C 0.127 H 312.5°. Best body text is #FFFFFF at 14.91:1 contrast (WCAG AA passes).

Color values

HEX	#400C57
RGB	rgb(64, 12, 87)
HSL	hsl(282, 76%, 19%)
HSV	hsv(282, 86%, 34%)
CMYK	cmyk(26.4%, 86.2%, 0%, 65.9%)
CIE-LAB	lab(15.70, 36.77, -33.10)
CIE-LCH	lch(15.70, 49.48, 318.01°)
OKLab	oklab(28.99% 0.0858 -0.0937)
OKLCH	oklch(28.99% 0.127 312.5)
XYZ	xyz(3.9658, 2.0412, 9.2001)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 4.48

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400C57 #23570C

analogous

#1B0C57 #400C57 #570C49

triadic

#400C57 #57400C #0C5740

tetradic

#400C57 #571B0C #23570C #0C4957

square

#400C57 #571B0C #23570C #0C4957

split-complementary

#400C57 #49570C #0C571B

monochromatic

#14041B #180521 #400C57 #68138D #8F1BC3

Accessibility & contrast

On white

14.91

#400C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#400C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400C57

14.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400C57	#FFFFFF	#000000	##FFFFFF
##400C57	1.00	14.91	1.41	14.91
#FFFFFF	14.91	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#012855

Tritanopia (blue-blind)

#3D1F32

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #400c57;
/* rgb */ color: rgb(64, 12, 87);
/* oklch */ color: oklch(29.0% 0.127 312.5);

Tailwind

colors: {
  custom: {
    50: '#785287',
    500: '#400c57',
    950: '#000000',
  },
}

SCSS

$custom: #400c57;
$custom-light: #785287;
$custom-dark: #000000;

JSON

{
  "hex": "#400c57",
  "rgb": {
    "r": 64,
    "g": 12,
    "b": 87
  },
  "hsl": {
    "h": 281.6,
    "s": 75.758,
    "l": 19.412
  },
  "oklch": {
    "l": 0.28992,
    "c": 0.12709,
    "h": 312.5
  },
  "luminance": 0.02041
}

Semantic roles & 50–950 ramp

primary

#400C57

secondary

#4C922D

accent

#F2356F

background

#F7F4F8

surface

#EEE7EF

border

#C9C3CA

text

#09030B

muted

#7B787C

Preview Lab

Preview with #400C57

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

Preview Lab → · Contrast checker → · Palette generator →