#3B37C0#3B37C0

#3B37C0 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.0% C 0.205 H 275.2°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3B37C0
RGB	rgb(59, 55, 192)
HSL	hsl(242, 55%, 48%)
HSV	hsv(242, 71%, 75%)
CMYK	cmyk(69.3%, 71.4%, 0%, 24.7%)
CIE-LAB	lab(32.85, 44.94, -70.73)
CIE-LCH	lch(32.85, 83.80, 302.43°)
OKLab	oklab(44.02% 0.0185 -0.2044)
OKLCH	oklch(44.02% 0.205 275.2)
XYZ	xyz(12.6811, 7.4668, 50.6319)
Luminance	0.0747 (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

#3B37C0 #BCC037

analogous

#3777C0 #3B37C0 #7F37C0

triadic

#3B37C0 #C03B37 #37C03B

tetradic

#3B37C0 #C03777 #BCC037 #37C07F

square

#3B37C0 #C03777 #BCC037 #37C07F

split-complementary

#3B37C0 #C07F37 #77C037

monochromatic

#1E1C61 #2C2990 #3B37C0 #6562D2 #9492E0

Accessibility & contrast

On white

8.42

#3B37C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3B37C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B37C0

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B37C0	#FFFFFF	#000000	##FFFFFF
##3B37C0	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C4

Deuteranopia (green-blind)

#0047BD

Tritanopia (blue-blind)

#005D78

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3b37c0;
/* rgb */ color: rgb(59, 55, 192);
/* oklch */ color: oklch(44.0% 0.205 275.2);

Tailwind

colors: {
  custom: {
    50: '#836fd4',
    500: '#3b37c0',
    950: '#000000',
  },
}

SCSS

$custom: #3b37c0;
$custom-light: #836fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3b37c0",
  "rgb": {
    "r": 59,
    "g": 55,
    "b": 192
  },
  "hsl": {
    "h": 241.752,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44015,
    "c": 0.20527,
    "h": 275.2
  },
  "luminance": 0.07468
}

Semantic roles & 50–950 ramp

primary

#3B37C0

secondary

#C9CB88

accent

#DF49DA

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3B37C0

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

Preview Lab → · Contrast checker → · Palette generator →