#4C43BB#4C43BB

#4C43BB is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.7% C 0.182 H 280.1°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#4C43BB
RGB	rgb(76, 67, 187)
HSL	hsl(245, 47%, 50%)
HSV	hsv(245, 64%, 73%)
CMYK	cmyk(59.4%, 64.2%, 0%, 26.7%)
CIE-LAB	lab(36.25, 38.56, -62.17)
CIE-LCH	lch(36.25, 73.16, 301.81°)
OKLab	oklab(46.65% 0.0317 -0.1789)
OKLCH	oklch(46.65% 0.182 280.1)
XYZ	xyz(13.9545, 9.1377, 48.0325)
Luminance	0.0914 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.04

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C43BB #B2BB43

analogous

#4376BB #4C43BB #8843BB

triadic

#4C43BB #BB4C43 #43BB4C

tetradic

#4C43BB #BB4376 #B2BB43 #43BB88

square

#4C43BB #BB4376 #B2BB43 #43BB88

split-complementary

#4C43BB #BB8843 #76BB43

monochromatic

#272361 #3A338E #4C43BB #7670CC #A19DDC

Accessibility & contrast

On white

7.43

#4C43BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#4C43BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C43BB

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C43BB	#FFFFFF	#000000	##FFFFFF
##4C43BB	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#0051B9

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4c43bb;
/* rgb */ color: rgb(76, 67, 187);
/* oklch */ color: oklch(46.7% 0.182 280.1);

Tailwind

colors: {
  custom: {
    50: '#8978d0',
    500: '#4c43bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c43bb;
$custom-light: #8978d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c43bb",
  "rgb": {
    "r": 76,
    "g": 67,
    "b": 187
  },
  "hsl": {
    "h": 244.5,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.46651,
    "c": 0.18167,
    "h": 280.1
  },
  "luminance": 0.09139
}

Semantic roles & 50–950 ramp

primary

#4C43BB

secondary

#C4C892

accent

#D751CD

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0914

muted

#7E7B82

Preview Lab

Preview with #4C43BB

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

Preview Lab → · Contrast checker → · Palette generator →