#4B42BB#4B42BB

#4B42BB is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.4% C 0.183 H 279.8°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#4B42BB
RGB	rgb(75, 66, 187)
HSL	hsl(244, 48%, 50%)
HSV	hsv(244, 65%, 73%)
CMYK	cmyk(59.9%, 64.7%, 0%, 26.7%)
CIE-LAB	lab(35.94, 39.00, -62.67)
CIE-LCH	lch(35.94, 73.81, 301.90°)
OKLab	oklab(46.41% 0.0313 -0.1804)
OKLCH	oklch(46.41% 0.183 279.8)
XYZ	xyz(13.8167, 8.9792, 48.0091)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.05

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B42BB #B2BB42

analogous

#4276BB #4B42BB #8842BB

triadic

#4B42BB #BB4B42 #42BB4B

tetradic

#4B42BB #BB4276 #B2BB42 #42BB88

square

#4B42BB #BB4276 #B2BB42 #42BB88

split-complementary

#4B42BB #BB8842 #76BB42

monochromatic

#272261 #39328E #4B42BB #756ECC #A09CDC

Accessibility & contrast

On white

7.51

#4B42BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#4B42BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B42BB

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B42BB	#FFFFFF	#000000	##FFFFFF
##4B42BB	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BF

Deuteranopia (green-blind)

#0050B9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4b42bb;
/* rgb */ color: rgb(75, 66, 187);
/* oklch */ color: oklch(46.4% 0.183 279.8);

Tailwind

colors: {
  custom: {
    50: '#8977d0',
    500: '#4b42bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b42bb;
$custom-light: #8977d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b42bb",
  "rgb": {
    "r": 75,
    "g": 66,
    "b": 187
  },
  "hsl": {
    "h": 244.463,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.4641,
    "c": 0.18308,
    "h": 279.8
  },
  "luminance": 0.0898
}

Semantic roles & 50–950 ramp

primary

#4B42BB

secondary

#C4C891

accent

#D750CD

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0914

muted

#7E7B82

Preview Lab

Preview with #4B42BB

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

Preview Lab → · Contrast checker → · Palette generator →