#431B75#431B75

#431B75 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.7% C 0.143 H 298.5°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#431B75
RGB	rgb(67, 27, 117)
HSL	hsl(267, 63%, 28%)
HSV	hsv(267, 77%, 46%)
CMYK	cmyk(42.7%, 76.9%, 0%, 54.1%)
CIE-LAB	lab(21.06, 38.41, -44.10)
CIE-LCH	lch(21.06, 58.48, 311.06°)
OKLab	oklab(33.67% 0.0685 -0.126)
OKLCH	oklch(33.67% 0.143 298.5)
XYZ	xyz(5.9167, 3.2614, 17.1440)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.25

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#431B75 #4D751B

analogous

#1B2075 #431B75 #701B75

triadic

#431B75 #75431B #1B7543

tetradic

#431B75 #751B20 #4D751B #1B7570

square

#431B75 #751B20 #4D751B #1B7570

split-complementary

#431B75 #75701B #20751B

monochromatic

#0E0619 #271043 #431B75 #5F26A7 #7D39D1

Accessibility & contrast

On white

12.71

#431B75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#431B75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #431B75

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##431B75	#FFFFFF	#000000	##FFFFFF
##431B75	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003378

Deuteranopia (green-blind)

#003273

Tritanopia (blue-blind)

#373246

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #431b75;
/* rgb */ color: rgb(67, 27, 117);
/* oklch */ color: oklch(33.7% 0.143 298.5);

Tailwind

colors: {
  custom: {
    50: '#7c5c9e',
    500: '#431b75',
    950: '#000000',
  },
}

SCSS

$custom: #431b75;
$custom-light: #7c5c9e;
$custom-dark: #000000;

JSON

{
  "hex": "#431b75",
  "rgb": {
    "r": 67,
    "g": 27,
    "b": 117
  },
  "hsl": {
    "h": 266.667,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.33673,
    "c": 0.14347,
    "h": 298.5
  },
  "luminance": 0.03262
}

Semantic roles & 50–950 ramp

primary

#431B75

secondary

#7CA942

accent

#E6429D

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#0A040E

muted

#7C797E

Preview Lab

Preview with #431B75

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

Preview Lab → · Contrast checker → · Palette generator →