#4B45BB#4B45BB

#4B45BB is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.9% C 0.179 H 279.2°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#4B45BB
RGB	rgb(75, 69, 187)
HSL	hsl(243, 46%, 50%)
HSV	hsv(243, 63%, 73%)
CMYK	cmyk(59.9%, 63.1%, 0%, 26.7%)
CIE-LAB	lab(36.63, 37.19, -61.55)
CIE-LCH	lch(36.63, 71.91, 301.14°)
OKLab	oklab(46.91% 0.0287 -0.1771)
OKLCH	oklch(46.91% 0.179 279.2)
XYZ	xyz(13.9966, 9.3389, 48.0691)
Luminance	0.0934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.43

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B45BB #B5BB45

analogous

#457ABB #4B45BB #8645BB

triadic

#4B45BB #BB4B45 #45BB4B

tetradic

#4B45BB #BB457A #B5BB45 #45BB86

square

#4B45BB #BB457A #B5BB45 #45BB86

split-complementary

#4B45BB #BB8645 #7ABB45

monochromatic

#272462 #39348F #4B45BB #7672CB #A29FDC

Accessibility & contrast

On white

7.32

#4B45BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#4B45BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B45BB

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B45BB	#FFFFFF	#000000	##FFFFFF
##4B45BB	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBF

Deuteranopia (green-blind)

#0051B9

Tritanopia (blue-blind)

#006279

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4b45bb;
/* rgb */ color: rgb(75, 69, 187);
/* oklch */ color: oklch(46.9% 0.179 279.2);

Tailwind

colors: {
  custom: {
    50: '#8979d0',
    500: '#4b45bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b45bb;
$custom-light: #8979d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b45bb",
  "rgb": {
    "r": 75,
    "g": 69,
    "b": 187
  },
  "hsl": {
    "h": 243.051,
    "s": 46.457,
    "l": 50.196
  },
  "oklch": {
    "l": 0.46909,
    "c": 0.17938,
    "h": 279.2
  },
  "luminance": 0.0934
}

Semantic roles & 50–950 ramp

primary

#4B45BB

secondary

#C6C894

accent

#D652CF

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0D0914

muted

#7D7B82

Preview Lab

Preview with #4B45BB

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

Preview Lab → · Contrast checker → · Palette generator →