#431B8B#431B8B

#431B8B is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.8% C 0.169 H 291.6°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#431B8B
RGB	rgb(67, 27, 139)
HSL	hsl(261, 67%, 33%)
HSV	hsv(261, 81%, 55%)
CMYK	cmyk(51.8%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(23.14, 44.47, -54.62)
CIE-LCH	lch(23.14, 70.43, 309.15°)
OKLab	oklab(35.76% 0.0622 -0.1569)
OKLCH	oklch(35.76% 0.169 291.6)
XYZ	xyz(7.3655, 3.8409, 24.7744)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#431B8B #638B1B

analogous

#1B2B8B #431B8B #7B1B8B

triadic

#431B8B #8B431B #1B8B43

tetradic

#431B8B #8B1B2B #638B1B #1B8B7B

square

#431B8B #8B1B2B #638B1B #1B8B7B

split-complementary

#431B8B #8B7B1B #2B8B1B

monochromatic

#120725 #2A1158 #431B8B #5C25BE #7B45DB

Accessibility & contrast

On white

11.88

#431B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#431B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #431B8B

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##431B8B	#FFFFFF	#000000	##FFFFFF
##431B8B	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#003589

Tritanopia (blue-blind)

#2A3B53

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #431b8b;
/* rgb */ color: rgb(67, 27, 139);
/* oklch */ color: oklch(35.8% 0.169 291.6);

Tailwind

colors: {
  custom: {
    50: '#805dae',
    500: '#431b8b',
    950: '#000000',
  },
}

SCSS

$custom: #431b8b;
$custom-light: #805dae;
$custom-dark: #000000;

JSON

{
  "hex": "#431b8b",
  "rgb": {
    "r": 67,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 261.429,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35764,
    "c": 0.16878,
    "h": 291.6
  },
  "luminance": 0.03841
}

Semantic roles & 50–950 ramp

primary

#431B8B

secondary

#92BC45

accent

#EA3DAD

background

#F8F5FA

surface

#EFE9F4

border

#CAC5CE

text

#0B0410

muted

#7C797F

Preview Lab

Preview with #431B8B

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

Preview Lab → · Contrast checker → · Palette generator →