#4B43BB#4B43BB

#4B43BB is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.6% C 0.182 H 279.6°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#4B43BB
RGB	rgb(75, 67, 187)
HSL	hsl(244, 47%, 50%)
HSV	hsv(244, 64%, 73%)
CMYK	cmyk(59.9%, 64.2%, 0%, 26.7%)
CIE-LAB	lab(36.17, 38.40, -62.30)
CIE-LCH	lch(36.17, 73.18, 301.65°)
OKLab	oklab(46.58% 0.0304 -0.1793)
OKLCH	oklch(46.58% 0.182 279.6)
XYZ	xyz(13.8756, 9.0970, 48.0288)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.12

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B43BB #B3BB43

analogous

#4377BB #4B43BB #8743BB

triadic

#4B43BB #BB4B43 #43BB4B

tetradic

#4B43BB #BB4377 #B3BB43 #43BB87

square

#4B43BB #BB4377 #B3BB43 #43BB87

split-complementary

#4B43BB #BB8743 #77BB43

monochromatic

#272361 #39338E #4B43BB #7670CC #A19DDC

Accessibility & contrast

On white

7.45

#4B43BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#4B43BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B43BB

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B43BB	#FFFFFF	#000000	##FFFFFF
##4B43BB	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#0050B9

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4b43bb;
/* rgb */ color: rgb(75, 67, 187);
/* oklch */ color: oklch(46.6% 0.182 279.6);

Tailwind

colors: {
  custom: {
    50: '#8978d0',
    500: '#4b43bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b43bb;
$custom-light: #8978d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b43bb",
  "rgb": {
    "r": 75,
    "g": 67,
    "b": 187
  },
  "hsl": {
    "h": 244,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.46575,
    "c": 0.18185,
    "h": 279.6
  },
  "luminance": 0.09098
}

Semantic roles & 50–950 ramp

primary

#4B43BB

secondary

#C4C892

accent

#D751CE

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0914

muted

#7E7B82

Preview Lab

Preview with #4B43BB

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

Preview Lab → · Contrast checker → · Palette generator →