#421C8B#421C8B

#421C8B is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.8% C 0.168 H 290.9°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#421C8B
RGB	rgb(66, 28, 139)
HSL	hsl(261, 66%, 33%)
HSV	hsv(261, 80%, 55%)
CMYK	cmyk(52.5%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(23.18, 43.87, -54.56)
CIE-LCH	lch(23.18, 70.01, 308.80°)
OKLab	oklab(35.76% 0.0598 -0.1568)
OKLCH	oklch(35.76% 0.168 290.9)
XYZ	xyz(7.3209, 3.8525, 24.7790)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#421C8B #658B1C

analogous

#1C2D8B #421C8B #7A1C8B

triadic

#421C8B #8B421C #1C8B42

tetradic

#421C8B #8B1C2D #658B1C #1C8B7A

square

#421C8B #8B1C2D #658B1C #1C8B7A

split-complementary

#421C8B #8B7A1C #2D8B1C

monochromatic

#120725 #2A1258 #421C8B #5A26BE #7A47DA

Accessibility & contrast

On white

11.86

#421C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#421C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #421C8B

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##421C8B	#FFFFFF	#000000	##FFFFFF
##421C8B	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#003589

Tritanopia (blue-blind)

#283C53

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #421c8b;
/* rgb */ color: rgb(66, 28, 139);
/* oklch */ color: oklch(35.8% 0.168 290.9);

Tailwind

colors: {
  custom: {
    50: '#7f5dae',
    500: '#421c8b',
    950: '#000000',
  },
}

SCSS

$custom: #421c8b;
$custom-light: #7f5dae;
$custom-dark: #000000;

JSON

{
  "hex": "#421c8b",
  "rgb": {
    "r": 66,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 260.541,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35764,
    "c": 0.1678,
    "h": 290.9
  },
  "luminance": 0.03853
}

Semantic roles & 50–950 ramp

primary

#421C8B

secondary

#94BC47

accent

#E93EAF

background

#F8F5FA

surface

#EFE9F4

border

#CAC5CE

text

#0B0410

muted

#7C797F

Preview Lab

Preview with #421C8B

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

Preview Lab → · Contrast checker → · Palette generator →