#400D57#400D57

#400D57 is a dark, vivid purple. Relative luminance 0.021; OKLCH L 29.1% C 0.126 H 312.4°. Best body text is #FFFFFF at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#400D57
RGB	rgb(64, 13, 87)
HSL	hsl(281, 74%, 20%)
HSV	hsv(281, 85%, 34%)
CMYK	cmyk(26.4%, 85.1%, 0%, 65.9%)
CIE-LAB	lab(15.83, 36.40, -32.90)
CIE-LCH	lch(15.83, 49.06, 317.90°)
OKLab	oklab(29.08% 0.0849 -0.0931)
OKLCH	oklch(29.08% 0.126 312.4)
XYZ	xyz(3.9783, 2.0661, 9.2042)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 4.49

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400D57 #24570D

analogous

#1B0D57 #400D57 #570D49

triadic

#400D57 #57400D #0D5740

tetradic

#400D57 #571B0D #24570D #0D4957

square

#400D57 #571B0D #24570D #0D4957

split-complementary

#400D57 #49570D #0D571B

monochromatic

#14041B #190522 #400D57 #67158C #8E1DC1

Accessibility & contrast

On white

14.86

#400D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#400D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400D57

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400D57	#FFFFFF	#000000	##FFFFFF
##400D57	1.00	14.86	1.41	14.86
#FFFFFF	14.86	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#022855

Tritanopia (blue-blind)

#3D1F32

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #400d57;
/* rgb */ color: rgb(64, 13, 87);
/* oklch */ color: oklch(29.1% 0.126 312.4);

Tailwind

colors: {
  custom: {
    50: '#785387',
    500: '#400d57',
    950: '#000000',
  },
}

SCSS

$custom: #400d57;
$custom-light: #785387;
$custom-dark: #000000;

JSON

{
  "hex": "#400d57",
  "rgb": {
    "r": 64,
    "g": 13,
    "b": 87
  },
  "hsl": {
    "h": 281.351,
    "s": 74,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29082,
    "c": 0.12603,
    "h": 312.4
  },
  "luminance": 0.02066
}

Semantic roles & 50–950 ramp

primary

#400D57

secondary

#4D922E

accent

#F13771

background

#F7F4F8

surface

#EEE7EF

border

#C9C3CA

text

#09030B

muted

#7B787C

Preview Lab

Preview with #400D57

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

Preview Lab → · Contrast checker → · Palette generator →