#4D37BC#4D37BC

#4D37BC is a dark, vivid blue. Relative luminance 0.079; OKLCH L 45.0% C 0.197 H 282.6°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#4D37BC
RGB	rgb(77, 55, 188)
HSL	hsl(250, 55%, 48%)
HSV	hsv(250, 71%, 74%)
CMYK	cmyk(59%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(33.86, 45.98, -66.66)
CIE-LCH	lch(33.86, 80.98, 304.59°)
OKLab	oklab(44.98% 0.043 -0.192)
OKLCH	oklch(44.98% 0.197 282.6)
XYZ	xyz(13.5010, 7.9401, 48.3884)
Luminance	0.0794 (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

#4D37BC #A6BC37

analogous

#3763BC #4D37BC #9037BC

triadic

#4D37BC #BC4D37 #37BC4D

tetradic

#4D37BC #BC3763 #A6BC37 #37BC90

square

#4D37BC #BC3763 #A6BC37 #37BC90

split-complementary

#4D37BC #BC9037 #63BC37

monochromatic

#261B5D #3A298D #4D37BC #7260D0 #9C8FDE

Accessibility & contrast

On white

8.11

#4D37BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#4D37BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D37BC

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D37BC	#FFFFFF	#000000	##FFFFFF
##4D37BC	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#004BB9

Tritanopia (blue-blind)

#015B76

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4d37bc;
/* rgb */ color: rgb(77, 55, 188);
/* oklch */ color: oklch(45.0% 0.197 282.6);

Tailwind

colors: {
  custom: {
    50: '#8b70d1',
    500: '#4d37bc',
    950: '#000000',
  },
}

SCSS

$custom: #4d37bc;
$custom-light: #8b70d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4d37bc",
  "rgb": {
    "r": 77,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 249.925,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44975,
    "c": 0.19678,
    "h": 282.6
  },
  "luminance": 0.07941
}

Semantic roles & 50–950 ramp

primary

#4D37BC

secondary

#BEC986

accent

#DE4AC6

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0814

muted

#7E7B83

Preview Lab

Preview with #4D37BC

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

Preview Lab → · Contrast checker → · Palette generator →