#4B3BB1#4B3BB1

#4B3BB1 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.4% C 0.179 H 282.5°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#4B3BB1
RGB	rgb(75, 59, 177)
HSL	hsl(248, 50%, 46%)
HSV	hsv(248, 67%, 69%)
CMYK	cmyk(57.6%, 66.7%, 0%, 30.6%)
CIE-LAB	lab(33.56, 39.97, -60.65)
CIE-LCH	lch(33.56, 72.64, 303.39°)
OKLab	oklab(44.42% 0.0386 -0.1745)
OKLCH	oklch(44.42% 0.179 282.5)
XYZ	xyz(12.3990, 7.7973, 42.4381)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.98

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B3BB1 #A1B13B

analogous

#3B66B1 #4B3BB1 #863BB1

triadic

#4B3BB1 #B14B3B #3BB14B

tetradic

#4B3BB1 #B13B66 #A1B13B #3BB186

square

#4B3BB1 #B13B66 #A1B13B #3BB186

split-complementary

#4B3BB1 #B1863B #66B13B

monochromatic

#241C55 #382C83 #4B3BB1 #6E5FCA #988DD9

Accessibility & contrast

On white

8.20

#4B3BB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4B3BB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B3BB1

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B3BB1	#FFFFFF	#000000	##FFFFFF
##4B3BB1	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B5

Deuteranopia (green-blind)

#004BAF

Tritanopia (blue-blind)

#135971

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4b3bb1;
/* rgb */ color: rgb(75, 59, 177);
/* oklch */ color: oklch(44.4% 0.179 282.5);

Tailwind

colors: {
  custom: {
    50: '#8872c9',
    500: '#4b3bb1',
    950: '#000000',
  },
}

SCSS

$custom: #4b3bb1;
$custom-light: #8872c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4b3bb1",
  "rgb": {
    "r": 75,
    "g": 59,
    "b": 177
  },
  "hsl": {
    "h": 248.136,
    "s": 50,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44421,
    "c": 0.1787,
    "h": 282.5
  },
  "luminance": 0.07798
}

Semantic roles & 50–950 ramp

primary

#4B3BB1

secondary

#BBC484

accent

#DA4EC7

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4B3BB1

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

Preview Lab → · Contrast checker → · Palette generator →