#431B78#431B78

#431B78 is a dark, vivid violet. Relative luminance 0.033; OKLCH L 33.9% C 0.147 H 297.5°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#431B78
RGB	rgb(67, 27, 120)
HSL	hsl(266, 63%, 29%)
HSV	hsv(266, 78%, 47%)
CMYK	cmyk(44.2%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(21.33, 39.23, -45.58)
CIE-LCH	lch(21.33, 60.14, 310.72°)
OKLab	oklab(33.95% 0.0678 -0.1304)
OKLCH	oklch(33.95% 0.147 297.5)
XYZ	xyz(6.0960, 3.3331, 18.0878)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.99

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#431B78 #50781B

analogous

#1B2278 #431B78 #721B78

triadic

#431B78 #78431B #1B7843

tetradic

#431B78 #781B22 #50781B #1B7872

square

#431B78 #781B22 #50781B #1B7872

split-complementary

#431B78 #78721B #22781B

monochromatic

#0E0619 #271046 #431B78 #5F26AA #7C3BD3

Accessibility & contrast

On white

12.60

#431B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#431B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #431B78

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##431B78	#FFFFFF	#000000	##FFFFFF
##431B78	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337B

Deuteranopia (green-blind)

#003276

Tritanopia (blue-blind)

#353348

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #431b78;
/* rgb */ color: rgb(67, 27, 120);
/* oklch */ color: oklch(33.9% 0.147 297.5);

Tailwind

colors: {
  custom: {
    50: '#7d5ca0',
    500: '#431b78',
    950: '#000000',
  },
}

SCSS

$custom: #431b78;
$custom-light: #7d5ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#431b78",
  "rgb": {
    "r": 67,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 265.806,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.33947,
    "c": 0.14696,
    "h": 297.5
  },
  "luminance": 0.03333
}

Semantic roles & 50–950 ramp

primary

#431B78

secondary

#7FAC43

accent

#E6419F

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#0A040F

muted

#7C797E

Preview Lab

Preview with #431B78

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

Preview Lab → · Contrast checker → · Palette generator →