#3B37D1#3B37D1

#3B37D1 is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.7% C 0.226 H 274.0°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3B37D1
RGB	rgb(59, 55, 209)
HSL	hsl(242, 63%, 52%)
HSV	hsv(242, 74%, 82%)
CMYK	cmyk(71.8%, 73.7%, 0%, 18%)
CIE-LAB	lab(34.53, 50.44, -77.88)
CIE-LCH	lch(34.53, 92.79, 302.93°)
OKLab	oklab(45.72% 0.0156 -0.2253)
OKLCH	oklch(45.72% 0.226 274)
XYZ	xyz(14.6746, 8.2642, 61.1310)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.00

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B37D1 #CDD137

analogous

#3780D1 #3B37D1 #8837D1

triadic

#3B37D1 #D13B37 #37D13B

tetradic

#3B37D1 #D13780 #CDD137 #37D188

square

#3B37D1 #D13780 #CDD137 #37D188

split-complementary

#3B37D1 #D18837 #80D137

monochromatic

#1D1A73 #2926A5 #3B37D1 #6C69DC #9D9BE8

Accessibility & contrast

On white

7.91

#3B37D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3B37D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B37D1

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B37D1	#FFFFFF	#000000	##FFFFFF
##3B37D1	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D5

Deuteranopia (green-blind)

#004ACE

Tritanopia (blue-blind)

#006481

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3b37d1;
/* rgb */ color: rgb(59, 55, 209);
/* oklch */ color: oklch(45.7% 0.226 274.0);

Tailwind

colors: {
  custom: {
    50: '#8770e0',
    500: '#3b37d1',
    950: '#000000',
  },
}

SCSS

$custom: #3b37d1;
$custom-light: #8770e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b37d1",
  "rgb": {
    "r": 59,
    "g": 55,
    "b": 209
  },
  "hsl": {
    "h": 241.558,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.45715,
    "c": 0.2258,
    "h": 274
  },
  "luminance": 0.08266
}

Semantic roles & 50–950 ramp

primary

#3B37D1

secondary

#D2D490

accent

#E642E1

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3B37D1

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

Preview Lab → · Contrast checker → · Palette generator →