#4B37B7#4B37B7

#4B37B7 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.4% C 0.191 H 282.4°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#4B37B7
RGB	rgb(75, 55, 183)
HSL	hsl(249, 54%, 47%)
HSV	hsv(249, 70%, 72%)
CMYK	cmyk(59%, 69.9%, 0%, 28.2%)
CIE-LAB	lab(33.24, 44.15, -64.74)
CIE-LCH	lch(33.24, 78.36, 304.29°)
OKLab	oklab(44.35% 0.0411 -0.1864)
OKLCH	oklch(44.35% 0.191 282.4)
XYZ	xyz(12.8124, 7.6463, 45.5913)
Luminance	0.0765 (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

#4B37B7 #A3B737

analogous

#3763B7 #4B37B7 #8B37B7

triadic

#4B37B7 #B74B37 #37B74B

tetradic

#4B37B7 #B73763 #A3B737 #37B78B

square

#4B37B7 #B73763 #A3B737 #37B78B

split-complementary

#4B37B7 #B78B37 #63B737

monochromatic

#241B59 #382988 #4B37B7 #6F5DCE #998CDC

Accessibility & contrast

On white

8.30

#4B37B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#4B37B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37B7

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B37B7	#FFFFFF	#000000	##FFFFFF
##4B37B7	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BB

Deuteranopia (green-blind)

#004AB5

Tritanopia (blue-blind)

#025973

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4b37b7;
/* rgb */ color: rgb(75, 55, 183);
/* oklch */ color: oklch(44.4% 0.191 282.4);

Tailwind

colors: {
  custom: {
    50: '#8970ce',
    500: '#4b37b7',
    950: '#000000',
  },
}

SCSS

$custom: #4b37b7;
$custom-light: #8970ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4b37b7",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 183
  },
  "hsl": {
    "h": 249.375,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.4435,
    "c": 0.19093,
    "h": 282.4
  },
  "luminance": 0.07647
}

Semantic roles & 50–950 ramp

primary

#4B37B7

secondary

#BCC783

accent

#DD4BC6

background

#F9F6FC

surface

#F1ECF9

border

#CBC7D2

text

#0D0714

muted

#7E7A82

Preview Lab

Preview with #4B37B7

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

Preview Lab → · Contrast checker → · Palette generator →