#4D37DD#4D37DD

#4D37DD is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 48.1% C 0.236 H 278.8°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#4D37DD
RGB	rgb(77, 55, 221)
HSL	hsl(248, 71%, 54%)
HSV	hsv(248, 75%, 87%)
CMYK	cmyk(65.2%, 75.1%, 0%, 13.3%)
CIE-LAB	lab(36.98, 55.93, -80.69)
CIE-LCH	lch(36.98, 98.18, 304.72°)
OKLab	oklab(48.13% 0.0359 -0.233)
OKLCH	oklch(48.13% 0.236 278.8)
XYZ	xyz(17.4737, 9.5292, 69.3111)
Luminance	0.0953 (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

#4D37DD #C7DD37

analogous

#3774DD #4D37DD #A037DD

triadic

#4D37DD #DD4D37 #37DD4D

tetradic

#4D37DD #DD3774 #C7DD37 #37DDA0

square

#4D37DD #DD3774 #C7DD37 #37DDA0

split-complementary

#4D37DD #DDA037 #74DD37

monochromatic

#251683 #331FB8 #4D37DD #7C6BE6 #AAA0EF

Accessibility & contrast

On white

7.23

#4D37DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#4D37DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D37DD

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D37DD	#FFFFFF	#000000	##FFFFFF
##4D37DD	1.00	7.23	2.91	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.23	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: #4d37dd;
/* rgb */ color: rgb(77, 55, 221);
/* oklch */ color: oklch(48.1% 0.236 278.8);

Tailwind

colors: {
  custom: {
    50: '#9171e9',
    500: '#4d37dd',
    950: '#000000',
  },
}

SCSS

$custom: #4d37dd;
$custom-light: #9171e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4d37dd",
  "rgb": {
    "r": 77,
    "g": 55,
    "b": 221
  },
  "hsl": {
    "h": 247.952,
    "s": 70.94,
    "l": 54.118
  },
  "oklch": {
    "l": 0.48131,
    "c": 0.23579,
    "h": 278.8
  },
  "luminance": 0.09531
}

Semantic roles & 50–950 ramp

primary

#4D37DD

secondary

#D2DB95

accent

#EE3AD6

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4D37DD

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

Preview Lab → · Contrast checker → · Palette generator →