#4C47BB#4C47BB

#4C47BB is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.3% C 0.177 H 279.1°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#4C47BB
RGB	rgb(76, 71, 187)
HSL	hsl(243, 46%, 51%)
HSV	hsv(243, 62%, 73%)
CMYK	cmyk(59.4%, 62%, 0%, 26.7%)
CIE-LAB	lab(37.17, 36.13, -60.66)
CIE-LCH	lch(37.17, 70.61, 300.78°)
OKLab	oklab(47.32% 0.0281 -0.1744)
OKLCH	oklch(47.32% 0.177 279.1)
XYZ	xyz(14.2005, 9.6298, 48.1145)
Luminance	0.0963 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.81

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C47BB #B6BB47

analogous

#477CBB #4C47BB #8647BB

triadic

#4C47BB #BB4C47 #47BB4C

tetradic

#4C47BB #BB477C #B6BB47 #47BB86

square

#4C47BB #BB477C #B6BB47 #47BB86

split-complementary

#4C47BB #BB8647 #7CBB47

monochromatic

#272563 #393590 #4C47BB #7774CC #A3A0DC

Accessibility & contrast

On white

7.18

#4C47BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#4C47BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C47BB

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C47BB	#FFFFFF	#000000	##FFFFFF
##4C47BB	1.00	7.18	2.93	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBF

Deuteranopia (green-blind)

#0053B9

Tritanopia (blue-blind)

#00647A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4c47bb;
/* rgb */ color: rgb(76, 71, 187);
/* oklch */ color: oklch(47.3% 0.177 279.1);

Tailwind

colors: {
  custom: {
    50: '#897ad0',
    500: '#4c47bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c47bb;
$custom-light: #897ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c47bb",
  "rgb": {
    "r": 76,
    "g": 71,
    "b": 187
  },
  "hsl": {
    "h": 242.586,
    "s": 46.032,
    "l": 50.588
  },
  "oklch": {
    "l": 0.47324,
    "c": 0.1767,
    "h": 279.1
  },
  "luminance": 0.09631
}

Semantic roles & 50–950 ramp

primary

#4C47BB

secondary

#C6C995

accent

#D652D0

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0D0914

muted

#7D7B82

Preview Lab

Preview with #4C47BB

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

Preview Lab → · Contrast checker → · Palette generator →