#401B66#401B66

#401B66 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 32.0% C 0.125 H 302.4°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#401B66
RGB	rgb(64, 27, 102)
HSL	hsl(270, 58%, 25%)
HSV	hsv(270, 74%, 40%)
CMYK	cmyk(37.3%, 73.5%, 0%, 60%)
CIE-LAB	lab(19.36, 33.71, -37.15)
CIE-LCH	lch(19.36, 50.16, 312.23°)
OKLab	oklab(31.98% 0.067 -0.1057)
OKLCH	oklch(31.98% 0.125 302.4)
XYZ	xyz(4.9040, 2.8332, 12.8563)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#401B66 #41661B

analogous

#1B1B66 #401B66 #651B66

triadic

#401B66 #66401B #1B6640

tetradic

#401B66 #661B1B #41661B #1B6665

square

#401B66 #661B1B #41661B #1B6665

split-complementary

#401B66 #66651B #1B661B

monochromatic

#0F0618 #220E36 #401B66 #5E2896 #7D35C7

Accessibility & contrast

On white

13.40

#401B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#401B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #401B66

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##401B66	#FFFFFF	#000000	##FFFFFF
##401B66	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E68

Deuteranopia (green-blind)

#002F64

Tritanopia (blue-blind)

#382D3E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #401b66;
/* rgb */ color: rgb(64, 27, 102);
/* oklch */ color: oklch(32.0% 0.125 302.4);

Tailwind

colors: {
  custom: {
    50: '#795b92',
    500: '#401b66',
    950: '#000000',
  },
}

SCSS

$custom: #401b66;
$custom-light: #795b92;
$custom-dark: #000000;

JSON

{
  "hex": "#401b66",
  "rgb": {
    "r": 64,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 269.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31975,
    "c": 0.12517,
    "h": 302.4
  },
  "luminance": 0.02833
}

Semantic roles & 50–950 ramp

primary

#401B66

secondary

#6F9B41

accent

#E14695

background

#F7F5F9

surface

#EEE9F1

border

#C9C5CB

text

#09040D

muted

#7B797E

Preview Lab

Preview with #401B66

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

Preview Lab → · Contrast checker → · Palette generator →