#451B78#451B78

#451B78 is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.2% C 0.147 H 298.8°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#451B78
RGB	rgb(69, 27, 120)
HSL	hsl(267, 63%, 29%)
HSV	hsv(267, 78%, 47%)
CMYK	cmyk(42.5%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(21.60, 39.60, -45.13)
CIE-LCH	lch(21.60, 60.04, 311.26°)
OKLab	oklab(34.19% 0.0709 -0.129)
OKLCH	oklch(34.19% 0.147 298.8)
XYZ	xyz(6.2355, 3.4051, 18.0944)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.90

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#451B78 #4E781B

analogous

#1B2078 #451B78 #741B78

triadic

#451B78 #78451B #1B7845

tetradic

#451B78 #781B20 #4E781B #1B7874

square

#451B78 #781B20 #4E781B #1B7874

split-complementary

#451B78 #78741B #20781B

monochromatic

#0E0619 #281046 #451B78 #6226AA #7F3BD3

Accessibility & contrast

On white

12.49

#451B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#451B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #451B78

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##451B78	#FFFFFF	#000000	##FFFFFF
##451B78	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347B

Deuteranopia (green-blind)

#003376

Tritanopia (blue-blind)

#393348

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #451b78;
/* rgb */ color: rgb(69, 27, 120);
/* oklch */ color: oklch(34.2% 0.147 298.8);

Tailwind

colors: {
  custom: {
    50: '#7e5ca0',
    500: '#451b78',
    950: '#000000',
  },
}

SCSS

$custom: #451b78;
$custom-light: #7e5ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#451b78",
  "rgb": {
    "r": 69,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 267.097,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34193,
    "c": 0.14723,
    "h": 298.8
  },
  "luminance": 0.03405
}

Semantic roles & 50–950 ramp

primary

#451B78

secondary

#7DAC43

accent

#E6419C

background

#F8F5F9

surface

#EFE9F2

border

#CAC5CC

text

#0A040F

muted

#7C797E

Preview Lab

Preview with #451B78

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

Preview Lab → · Contrast checker → · Palette generator →