#421B78#421B78

#421B78 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.8% C 0.147 H 296.8°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#421B78
RGB	rgb(66, 27, 120)
HSL	hsl(265, 63%, 29%)
HSV	hsv(265, 78%, 47%)
CMYK	cmyk(45%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(21.20, 39.05, -45.80)
CIE-LCH	lch(21.20, 60.19, 310.45°)
OKLab	oklab(33.83% 0.0662 -0.1311)
OKLCH	oklch(33.83% 0.147 296.8)
XYZ	xyz(6.0280, 3.2981, 18.0847)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#421B78 #51781B

analogous

#1B2378 #421B78 #711B78

triadic

#421B78 #78421B #1B7842

tetradic

#421B78 #781B23 #51781B #1B7871

square

#421B78 #781B23 #51781B #1B7871

split-complementary

#421B78 #78711B #23781B

monochromatic

#0E0619 #271046 #421B78 #5D26AA #7A3BD3

Accessibility & contrast

On white

12.65

#421B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#421B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #421B78

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##421B78	#FFFFFF	#000000	##FFFFFF
##421B78	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#003276

Tritanopia (blue-blind)

#343348

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #421b78;
/* rgb */ color: rgb(66, 27, 120);
/* oklch */ color: oklch(33.8% 0.147 296.8);

Tailwind

colors: {
  custom: {
    50: '#7c5ca0',
    500: '#421b78',
    950: '#000000',
  },
}

SCSS

$custom: #421b78;
$custom-light: #7c5ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#421b78",
  "rgb": {
    "r": 66,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 265.161,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.33825,
    "c": 0.14685,
    "h": 296.8
  },
  "luminance": 0.03298
}

Semantic roles & 50–950 ramp

primary

#421B78

secondary

#80AC43

accent

#E641A1

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#0A040F

muted

#7C797E

Preview Lab

Preview with #421B78

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

Preview Lab → · Contrast checker → · Palette generator →