#4B37B8#4B37B8

#4B37B8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.4% C 0.192 H 282.3°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#4B37B8
RGB	rgb(75, 55, 184)
HSL	hsl(249, 54%, 47%)
HSV	hsv(249, 70%, 72%)
CMYK	cmyk(59.2%, 70.1%, 0%, 27.8%)
CIE-LAB	lab(33.32, 44.46, -65.18)
CIE-LCH	lch(33.32, 78.90, 304.30°)
OKLab	oklab(44.44% 0.041 -0.1878)
OKLCH	oklch(44.44% 0.192 282.3)
XYZ	xyz(12.9169, 7.6881, 46.1414)
Luminance	0.0769 (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

#4B37B8 #A4B837

analogous

#3764B8 #4B37B8 #8C37B8

triadic

#4B37B8 #B84B37 #37B84B

tetradic

#4B37B8 #B83764 #A4B837 #37B88C

square

#4B37B8 #B83764 #A4B837 #37B88C

split-complementary

#4B37B8 #B88C37 #64B837

monochromatic

#251B5A #382989 #4B37B8 #6F5DCF #998DDD

Accessibility & contrast

On white

8.27

#4B37B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#4B37B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37B8

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B37B8	#FFFFFF	#000000	##FFFFFF
##4B37B8	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BC

Deuteranopia (green-blind)

#004AB6

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4b37b8;
/* rgb */ color: rgb(75, 55, 184);
/* oklch */ color: oklch(44.4% 0.192 282.3);

Tailwind

colors: {
  custom: {
    50: '#8970ce',
    500: '#4b37b8',
    950: '#000000',
  },
}

SCSS

$custom: #4b37b8;
$custom-light: #8970ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4b37b8",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 184
  },
  "hsl": {
    "h": 249.302,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44441,
    "c": 0.19217,
    "h": 282.3
  },
  "luminance": 0.07689
}

Semantic roles & 50–950 ramp

primary

#4B37B8

secondary

#BDC784

accent

#DD4AC7

background

#F9F6FC

surface

#F1ECF9

border

#CBC7D2

text

#0D0714

muted

#7E7A82

Preview Lab

Preview with #4B37B8

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

Preview Lab → · Contrast checker → · Palette generator →