#4B1B79#4B1B79

#4B1B79 is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.0% C 0.149 H 302.4°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#4B1B79
RGB	rgb(75, 27, 121)
HSL	hsl(271, 64%, 29%)
HSV	hsv(271, 78%, 47%)
CMYK	cmyk(38%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(22.51, 40.98, -44.24)
CIE-LCH	lch(22.51, 60.31, 312.81°)
OKLab	oklab(35.05% 0.08 -0.1262)
OKLCH	oklch(35.05% 0.149 302.4)
XYZ	xyz(6.7439, 3.6602, 18.4366)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.77

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B1B79 #49791B

analogous

#1C1B79 #4B1B79 #791B78

triadic

#4B1B79 #794B1B #1B794B

tetradic

#4B1B79 #791C1B #49791B #1B7879

square

#4B1B79 #791C1B #49791B #1B7879

split-complementary

#4B1B79 #78791B #1B791C

monochromatic

#100619 #2C1047 #4B1B79 #6A26AB #893BD3

Accessibility & contrast

On white

12.12

#4B1B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#4B1B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B1B79

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B1B79	#FFFFFF	#000000	##FFFFFF
##4B1B79	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357C

Deuteranopia (green-blind)

#003577

Tritanopia (blue-blind)

#413349

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #4b1b79;
/* rgb */ color: rgb(75, 27, 121);
/* oklch */ color: oklch(35.0% 0.149 302.4);

Tailwind

colors: {
  custom: {
    50: '#825da0',
    500: '#4b1b79',
    950: '#000000',
  },
}

SCSS

$custom: #4b1b79;
$custom-light: #825da0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b1b79",
  "rgb": {
    "r": 75,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 270.638,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35047,
    "c": 0.1494,
    "h": 302.4
  },
  "luminance": 0.0366
}

Semantic roles & 50–950 ramp

primary

#4B1B79

secondary

#77AD43

accent

#E74192

background

#F8F5FA

surface

#EFE9F3

border

#CAC5CD

text

#0B040F

muted

#7C797F

Preview Lab

Preview with #4B1B79

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

Preview Lab → · Contrast checker → · Palette generator →