#421B66#421B66

#421B66 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.2% C 0.126 H 303.9°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#421B66
RGB	rgb(66, 27, 102)
HSL	hsl(271, 58%, 25%)
HSV	hsv(271, 74%, 40%)
CMYK	cmyk(35.3%, 73.5%, 0%, 60%)
CIE-LAB	lab(19.64, 34.16, -36.68)
CIE-LCH	lch(19.64, 50.12, 312.96°)
OKLab	oklab(32.24% 0.0701 -0.1043)
OKLCH	oklch(32.24% 0.126 303.9)
XYZ	xyz(5.0364, 2.9014, 12.8625)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#421B66 #3F661B

analogous

#1C1B66 #421B66 #661B64

triadic

#421B66 #66421B #1B6642

tetradic

#421B66 #661C1B #3F661B #1B6466

square

#421B66 #661C1B #3F661B #1B6466

split-complementary

#421B66 #64661B #1B661C

monochromatic

#100618 #230E36 #421B66 #612896 #8135C7

Accessibility & contrast

On white

13.29

#421B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#421B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #421B66

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##421B66	#FFFFFF	#000000	##FFFFFF
##421B66	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F68

Deuteranopia (green-blind)

#002F64

Tritanopia (blue-blind)

#3B2C3E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #421b66;
/* rgb */ color: rgb(66, 27, 102);
/* oklch */ color: oklch(32.2% 0.126 303.9);

Tailwind

colors: {
  custom: {
    50: '#7a5b92',
    500: '#421b66',
    950: '#000000',
  },
}

SCSS

$custom: #421b66;
$custom-light: #7a5b92;
$custom-dark: #000000;

JSON

{
  "hex": "#421b66",
  "rgb": {
    "r": 66,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 271.2,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.32238,
    "c": 0.12563,
    "h": 303.9
  },
  "luminance": 0.02901
}

Semantic roles & 50–950 ramp

primary

#421B66

secondary

#6D9B41

accent

#E14691

background

#F7F5F9

surface

#EEE9F1

border

#C9C5CB

text

#09040D

muted

#7B797E

Preview Lab

Preview with #421B66

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

Preview Lab → · Contrast checker → · Palette generator →