#421F9B#421F9B

#421F9B is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.7% C 0.183 H 286.7°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#421F9B
RGB	rgb(66, 31, 155)
HSL	hsl(257, 67%, 36%)
HSV	hsv(257, 80%, 61%)
CMYK	cmyk(57.4%, 80%, 0%, 39.2%)
CIE-LAB	lab(25.27, 47.01, -61.00)
CIE-LCH	lch(25.27, 77.01, 307.62°)
OKLab	oklab(37.71% 0.0526 -0.1756)
OKLCH	oklch(37.71% 0.183 286.7)
XYZ	xyz(8.6514, 4.5043, 31.4175)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#421F9B #789B1F

analogous

#1F3A9B #421F9B #801F9B

triadic

#421F9B #9B421F #1F9B42

tetradic

#421F9B #9B1F3A #789B1F #1F9B80

square

#421F9B #9B1F3A #789B1F #1F9B80

split-complementary

#421F9B #9B801F #3A9B1F

monochromatic

#170B35 #2C1568 #421F9B #5829CE #7D57DD

Accessibility & contrast

On white

11.05

#421F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#421F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #421F9B

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##421F9B	#FFFFFF	#000000	##FFFFFF
##421F9B	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9E

Deuteranopia (green-blind)

#003899

Tritanopia (blue-blind)

#17435D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #421f9b;
/* rgb */ color: rgb(66, 31, 155);
/* oklch */ color: oklch(37.7% 0.183 286.7);

Tailwind

colors: {
  custom: {
    50: '#8160ba',
    500: '#421f9b',
    950: '#000000',
  },
}

SCSS

$custom: #421f9b;
$custom-light: #8160ba;
$custom-dark: #000000;

JSON

{
  "hex": "#421f9b",
  "rgb": {
    "r": 66,
    "g": 31,
    "b": 155
  },
  "hsl": {
    "h": 256.935,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37709,
    "c": 0.18335,
    "h": 286.7
  },
  "luminance": 0.04505
}

Semantic roles & 50–950 ramp

primary

#421F9B

secondary

#A2C155

accent

#EA3EB9

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0C0512

muted

#7D7981

Preview Lab

Preview with #421F9B

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

Preview Lab → · Contrast checker → · Palette generator →