#431B5B#431B5B

#431B5B is a dark, moderate violet. Relative luminance 0.027; OKLCH L 31.5% C 0.113 H 310.2°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#431B5B
RGB	rgb(67, 27, 91)
HSL	hsl(278, 54%, 23%)
HSV	hsv(278, 70%, 36%)
CMYK	cmyk(26.4%, 70.3%, 0%, 64.3%)
CIE-LAB	lab(18.94, 31.54, -30.54)
CIE-LCH	lch(18.94, 43.90, 315.93°)
OKLab	oklab(31.49% 0.0729 -0.0862)
OKLCH	oklch(31.49% 0.113 310.2)
XYZ	xyz(4.5946, 2.7326, 10.1809)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Plum Purple

#4E0550

ΔE00 5.52

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#431B5B #335B1B

analogous

#231B5B #431B5B #5B1B53

triadic

#431B5B #5B431B #1B5B43

tetradic

#431B5B #5B231B #335B1B #1B535B

square

#431B5B #5B231B #335B1B #1B535B

split-complementary

#431B5B #535B1B #1B5B23

monochromatic

#110718 #200D2C #431B5B #66298A #8837B9

Accessibility & contrast

On white

13.58

#431B5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#431B5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #431B5B

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##431B5B	#FFFFFF	#000000	##FFFFFF
##431B5B	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5D

Deuteranopia (green-blind)

#122F5A

Tritanopia (blue-blind)

#402838

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #431b5b;
/* rgb */ color: rgb(67, 27, 91);
/* oklch */ color: oklch(31.5% 0.113 310.2);

Tailwind

colors: {
  custom: {
    50: '#7a5a8a',
    500: '#431b5b',
    950: '#000000',
  },
}

SCSS

$custom: #431b5b;
$custom-light: #7a5a8a;
$custom-dark: #000000;

JSON

{
  "hex": "#431b5b",
  "rgb": {
    "r": 67,
    "g": 27,
    "b": 91
  },
  "hsl": {
    "h": 277.5,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.31494,
    "c": 0.11288,
    "h": 310.2
  },
  "luminance": 0.02732
}

Semantic roles & 50–950 ramp

primary

#431B5B

secondary

#5F9141

accent

#DE4A81

background

#F7F5F8

surface

#EEE9F0

border

#C9C5CB

text

#09040C

muted

#7B797D

Preview Lab

Preview with #431B5B

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

Preview Lab → · Contrast checker → · Palette generator →