#4C37DD#4C37DD

#4C37DD is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 48.1% C 0.236 H 278.4°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#4C37DD
RGB	rgb(76, 55, 221)
HSL	hsl(248, 71%, 54%)
HSV	hsv(248, 75%, 87%)
CMYK	cmyk(65.6%, 75.1%, 0%, 13.3%)
CIE-LAB	lab(36.91, 55.82, -80.82)
CIE-LCH	lch(36.91, 98.23, 304.63°)
OKLab	oklab(48.06% 0.0346 -0.2334)
OKLCH	oklch(48.06% 0.236 278.4)
XYZ	xyz(17.3936, 9.4879, 69.3073)
Luminance	0.0949 (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

#4C37DD #C8DD37

analogous

#3775DD #4C37DD #9F37DD

triadic

#4C37DD #DD4C37 #37DD4C

tetradic

#4C37DD #DD3775 #C8DD37 #37DD9F

square

#4C37DD #DD3775 #C8DD37 #37DD9F

split-complementary

#4C37DD #DD9F37 #75DD37

monochromatic

#241683 #321FB8 #4C37DD #7B6BE6 #AAA0EF

Accessibility & contrast

On white

7.25

#4C37DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#4C37DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C37DD

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C37DD	#FFFFFF	#000000	##FFFFFF
##4C37DD	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DE2

Deuteranopia (green-blind)

#0050DA

Tritanopia (blue-blind)

#006788

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4c37dd;
/* rgb */ color: rgb(76, 55, 221);
/* oklch */ color: oklch(48.1% 0.236 278.4);

Tailwind

colors: {
  custom: {
    50: '#9171e9',
    500: '#4c37dd',
    950: '#000000',
  },
}

SCSS

$custom: #4c37dd;
$custom-light: #9171e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4c37dd",
  "rgb": {
    "r": 76,
    "g": 55,
    "b": 221
  },
  "hsl": {
    "h": 247.59,
    "s": 70.94,
    "l": 54.118
  },
  "oklch": {
    "l": 0.48058,
    "c": 0.23598,
    "h": 278.4
  },
  "luminance": 0.09489
}

Semantic roles & 50–950 ramp

primary

#4C37DD

secondary

#D2DB95

accent

#EE3AD7

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4C37DD

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

Preview Lab → · Contrast checker → · Palette generator →