#431B66#431B66

#431B66 is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.4% C 0.126 H 304.7°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#431B66
RGB	rgb(67, 27, 102)
HSL	hsl(272, 58%, 25%)
HSV	hsv(272, 74%, 40%)
CMYK	cmyk(34.3%, 73.5%, 0%, 60%)
CIE-LAB	lab(19.79, 34.38, -36.44)
CIE-LCH	lch(19.79, 50.10, 313.34°)
OKLab	oklab(32.37% 0.0716 -0.1035)
OKLCH	oklch(32.37% 0.126 304.7)
XYZ	xyz(5.1044, 2.9365, 12.8657)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#431B66 #3E661B

analogous

#1D1B66 #431B66 #661B63

triadic

#431B66 #66431B #1B6643

tetradic

#431B66 #661D1B #3E661B #1B6366

square

#431B66 #661D1B #3E661B #1B6366

split-complementary

#431B66 #63661B #1B661D

monochromatic

#100618 #230E36 #431B66 #632896 #8335C7

Accessibility & contrast

On white

13.23

#431B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#431B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #431B66

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##431B66	#FFFFFF	#000000	##FFFFFF
##431B66	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F68

Deuteranopia (green-blind)

#003064

Tritanopia (blue-blind)

#3C2C3E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #431b66;
/* rgb */ color: rgb(67, 27, 102);
/* oklch */ color: oklch(32.4% 0.126 304.7);

Tailwind

colors: {
  custom: {
    50: '#7b5b92',
    500: '#431b66',
    950: '#000000',
  },
}

SCSS

$custom: #431b66;
$custom-light: #7b5b92;
$custom-dark: #000000;

JSON

{
  "hex": "#431b66",
  "rgb": {
    "r": 67,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 272,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.32371,
    "c": 0.12588,
    "h": 304.7
  },
  "luminance": 0.02936
}

Semantic roles & 50–950 ramp

primary

#431B66

secondary

#6B9B41

accent

#E1468F

background

#F7F5F9

surface

#EEE9F1

border

#C9C5CB

text

#0A040D

muted

#7C797E

Preview Lab

Preview with #431B66

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

Preview Lab → · Contrast checker → · Palette generator →