#4B37BC#4B37BC

#4B37BC is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.8% C 0.197 H 281.8°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#4B37BC
RGB	rgb(75, 55, 188)
HSL	hsl(249, 55%, 48%)
HSV	hsv(249, 71%, 74%)
CMYK	cmyk(60.1%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(33.69, 45.69, -66.95)
CIE-LCH	lch(33.69, 81.06, 304.31°)
OKLab	oklab(44.81% 0.0402 -0.1929)
OKLCH	oklch(44.81% 0.197 281.8)
XYZ	xyz(13.3421, 7.8581, 48.3809)
Luminance	0.0786 (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

#4B37BC #A8BC37

analogous

#3765BC #4B37BC #8E37BC

triadic

#4B37BC #BC4B37 #37BC4B

tetradic

#4B37BC #BC3765 #A8BC37 #37BC8E

square

#4B37BC #BC3765 #A8BC37 #37BC8E

split-complementary

#4B37BC #BC8E37 #65BC37

monochromatic

#251B5D #38298D #4B37BC #7160D0 #9B8FDE

Accessibility & contrast

On white

8.17

#4B37BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#4B37BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37BC

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B37BC	#FFFFFF	#000000	##FFFFFF
##4B37BC	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4b37bc;
/* rgb */ color: rgb(75, 55, 188);
/* oklch */ color: oklch(44.8% 0.197 281.8);

Tailwind

colors: {
  custom: {
    50: '#8a70d1',
    500: '#4b37bc',
    950: '#000000',
  },
}

SCSS

$custom: #4b37bc;
$custom-light: #8a70d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b37bc",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 249.023,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44809,
    "c": 0.19709,
    "h": 281.8
  },
  "luminance": 0.07859
}

Semantic roles & 50–950 ramp

primary

#4B37BC

secondary

#BFC986

accent

#DE4AC8

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4B37BC

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

Preview Lab → · Contrast checker → · Palette generator →