#4B37DD#4B37DD

#4B37DD is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 48.0% C 0.236 H 278.1°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#4B37DD
RGB	rgb(75, 55, 221)
HSL	hsl(247, 71%, 54%)
HSV	hsv(247, 75%, 87%)
CMYK	cmyk(66.1%, 75.1%, 0%, 13.3%)
CIE-LAB	lab(36.83, 55.72, -80.95)
CIE-LCH	lch(36.83, 98.27, 304.54°)
OKLab	oklab(47.99% 0.0333 -0.2338)
OKLCH	oklch(47.99% 0.236 278.1)
XYZ	xyz(17.3148, 9.4472, 69.3036)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B37DD #C9DD37

analogous

#3776DD #4B37DD #9E37DD

triadic

#4B37DD #DD4B37 #37DD4B

tetradic

#4B37DD #DD3776 #C9DD37 #37DD9E

square

#4B37DD #DD3776 #C9DD37 #37DD9E

split-complementary

#4B37DD #DD9E37 #76DD37

monochromatic

#231683 #321FB8 #4B37DD #7A6BE6 #A9A0EF

Accessibility & contrast

On white

7.27

#4B37DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#4B37DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37DD

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B37DD	#FFFFFF	#000000	##FFFFFF
##4B37DD	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DE2

Deuteranopia (green-blind)

#0050DA

Tritanopia (blue-blind)

#006788

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4b37dd;
/* rgb */ color: rgb(75, 55, 221);
/* oklch */ color: oklch(48.0% 0.236 278.1);

Tailwind

colors: {
  custom: {
    50: '#9071e9',
    500: '#4b37dd',
    950: '#000000',
  },
}

SCSS

$custom: #4b37dd;
$custom-light: #9071e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4b37dd",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 221
  },
  "hsl": {
    "h": 247.229,
    "s": 70.94,
    "l": 54.118
  },
  "oklch": {
    "l": 0.47986,
    "c": 0.23619,
    "h": 278.1
  },
  "luminance": 0.09449
}

Semantic roles & 50–950 ramp

primary

#4B37DD

secondary

#D3DB95

accent

#EE3AD8

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4B37DD

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

Preview Lab → · Contrast checker → · Palette generator →