#4B31BB#4B31BB

#4B31BB is a dark, highly saturated violet. Relative luminance 0.073; OKLCH L 43.9% C 0.202 H 282.8°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#4B31BB
RGB	rgb(75, 49, 187)
HSL	hsl(251, 58%, 46%)
HSV	hsv(251, 74%, 73%)
CMYK	cmyk(59.9%, 73.8%, 0%, 26.7%)
CIE-LAB	lab(32.43, 48.62, -68.42)
CIE-LCH	lch(32.43, 83.94, 305.40°)
OKLab	oklab(43.89% 0.0449 -0.1972)
OKLCH	oklch(43.89% 0.202 282.8)
XYZ	xyz(12.9668, 7.2795, 47.7259)
Luminance	0.0728 (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

#4B31BB #A1BB31

analogous

#315CBB #4B31BB #9031BB

triadic

#4B31BB #BB4B31 #31BB4B

tetradic

#4B31BB #BB315C #A1BB31 #31BB90

square

#4B31BB #BB315C #A1BB31 #31BB90

split-complementary

#4B31BB #BB9031 #5CBB31

monochromatic

#24185A #38248B #4B31BB #6E56D3 #9887E0

Accessibility & contrast

On white

8.55

#4B31BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#4B31BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B31BB

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B31BB	#FFFFFF	#000000	##FFFFFF
##4B31BB	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BF

Deuteranopia (green-blind)

#0048B8

Tritanopia (blue-blind)

#005773

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4b31bb;
/* rgb */ color: rgb(75, 49, 187);
/* oklch */ color: oklch(43.9% 0.202 282.8);

Tailwind

colors: {
  custom: {
    50: '#8a6cd1',
    500: '#4b31bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b31bb;
$custom-light: #8a6cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b31bb",
  "rgb": {
    "r": 75,
    "g": 49,
    "b": 187
  },
  "hsl": {
    "h": 251.304,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43893,
    "c": 0.20224,
    "h": 282.8
  },
  "luminance": 0.0728
}

Semantic roles & 50–950 ramp

primary

#4B31BB

secondary

#BBC97F

accent

#E246C4

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4B31BB

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

Preview Lab → · Contrast checker → · Palette generator →