#401B81#401B81

#401B81 is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.4% C 0.157 H 292.6°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#401B81
RGB	rgb(64, 27, 129)
HSL	hsl(262, 65%, 31%)
HSV	hsv(262, 79%, 51%)
CMYK	cmyk(50.4%, 79.1%, 0%, 49.4%)
CIE-LAB	lab(21.79, 41.22, -50.56)
CIE-LCH	lch(21.79, 65.23, 309.19°)
OKLab	oklab(34.45% 0.0605 -0.1451)
OKLCH	oklch(34.45% 0.157 292.6)
XYZ	xyz(6.4676, 3.4586, 21.0914)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#401B81 #5C811B

analogous

#1B2981 #401B81 #731B81

triadic

#401B81 #81401B #1B8140

tetradic

#401B81 #811B29 #5C811B #1B8173

square

#401B81 #811B29 #5C811B #1B8173

split-complementary

#401B81 #81731B #29811B

monochromatic

#0E061C #27104E #401B81 #5926B4 #763FD7

Accessibility & contrast

On white

12.41

#401B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#401B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #401B81

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##401B81	#FFFFFF	#000000	##FFFFFF
##401B81	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003684

Deuteranopia (green-blind)

#00327F

Tritanopia (blue-blind)

#2B374D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #401b81;
/* rgb */ color: rgb(64, 27, 129);
/* oklch */ color: oklch(34.4% 0.157 292.6);

Tailwind

colors: {
  custom: {
    50: '#7c5ca7',
    500: '#401b81',
    950: '#000000',
  },
}

SCSS

$custom: #401b81;
$custom-light: #7c5ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#401b81",
  "rgb": {
    "r": 64,
    "g": 27,
    "b": 129
  },
  "hsl": {
    "h": 261.765,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.34445,
    "c": 0.15722,
    "h": 292.6
  },
  "luminance": 0.03459
}

Semantic roles & 50–950 ramp

primary

#401B81

secondary

#8BB543

accent

#E83FAB

background

#F8F5FA

surface

#EFE9F4

border

#CAC5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #401B81

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

Preview Lab → · Contrast checker → · Palette generator →