#4C37BB#4C37BB

#4C37BB is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.8% C 0.196 H 282.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#4C37BB
RGB	rgb(76, 55, 187)
HSL	hsl(250, 55%, 47%)
HSV	hsv(250, 71%, 73%)
CMYK	cmyk(59.4%, 70.6%, 0%, 26.7%)
CIE-LAB	lab(33.68, 45.53, -66.37)
CIE-LCH	lch(33.68, 80.48, 304.45°)
OKLab	oklab(44.8% 0.0418 -0.1912)
OKLCH	oklch(44.8% 0.196 282.3)
XYZ	xyz(13.3135, 7.8558, 47.8188)
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

#4C37BB #A6BB37

analogous

#3764BB #4C37BB #8E37BB

triadic

#4C37BB #BB4C37 #37BB4C

tetradic

#4C37BB #BB3764 #A6BB37 #37BB8E

square

#4C37BB #BB3764 #A6BB37 #37BB8E

split-complementary

#4C37BB #BB8E37 #64BB37

monochromatic

#261B5C #39298C #4C37BB #715FD0 #9B8EDE

Accessibility & contrast

On white

8.17

#4C37BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#4C37BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C37BB

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C37BB	#FFFFFF	#000000	##FFFFFF
##4C37BB	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)

#0054BF

Deuteranopia (green-blind)

#004BB9

Tritanopia (blue-blind)

#005A75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4c37bb;
/* rgb */ color: rgb(76, 55, 187);
/* oklch */ color: oklch(44.8% 0.196 282.3);

Tailwind

colors: {
  custom: {
    50: '#8a70d1',
    500: '#4c37bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c37bb;
$custom-light: #8a70d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4c37bb",
  "rgb": {
    "r": 76,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 249.545,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.448,
    "c": 0.19571,
    "h": 282.3
  },
  "luminance": 0.07857
}

Semantic roles & 50–950 ramp

primary

#4C37BB

secondary

#BEC985

accent

#DE4AC6

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4C37BB

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

Preview Lab → · Contrast checker → · Palette generator →