#4B33B1#4B33B1

#4B33B1 is a dark, vivid violet. Relative luminance 0.070; OKLCH L 43.2% C 0.188 H 284.0°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#4B33B1
RGB	rgb(75, 51, 177)
HSL	hsl(251, 55%, 45%)
HSV	hsv(251, 71%, 69%)
CMYK	cmyk(57.6%, 71.2%, 0%, 30.6%)
CIE-LAB	lab(31.89, 44.54, -63.38)
CIE-LCH	lch(31.89, 77.46, 305.10°)
OKLab	oklab(43.23% 0.0455 -0.1824)
OKLCH	oklch(43.23% 0.188 284)
XYZ	xyz(12.0189, 7.0371, 42.3114)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B33B1 #99B133

analogous

#335AB1 #4B33B1 #8A33B1

triadic

#4B33B1 #B14B33 #33B14B

tetradic

#4B33B1 #B1335A #99B133 #33B18A

square

#4B33B1 #B1335A #99B133 #33B18A

split-complementary

#4B33B1 #B18A33 #5AB133

monochromatic

#231852 #372581 #4B33B1 #6B54CE #9483DB

Accessibility & contrast

On white

8.72

#4B33B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4B33B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B33B1

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B33B1	#FFFFFF	#000000	##FFFFFF
##4B33B1	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB5

Deuteranopia (green-blind)

#0047AF

Tritanopia (blue-blind)

#14556E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4b33b1;
/* rgb */ color: rgb(75, 51, 177);
/* oklch */ color: oklch(43.2% 0.188 284.0);

Tailwind

colors: {
  custom: {
    50: '#886dc9',
    500: '#4b33b1',
    950: '#000000',
  },
}

SCSS

$custom: #4b33b1;
$custom-light: #886dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4b33b1",
  "rgb": {
    "r": 75,
    "g": 51,
    "b": 177
  },
  "hsl": {
    "h": 251.429,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.43225,
    "c": 0.18804,
    "h": 284
  },
  "luminance": 0.07038
}

Semantic roles & 50–950 ramp

primary

#4B33B1

secondary

#B7C57B

accent

#DF49C2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0D0713

muted

#7D7A82

Preview Lab

Preview with #4B33B1

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

Preview Lab → · Contrast checker → · Palette generator →