#3724B0#3724B0

#3724B0 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.5% C 0.205 H 277.6°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#3724B0
RGB	rgb(55, 36, 176)
HSL	hsl(248, 66%, 42%)
HSV	hsv(248, 80%, 69%)
CMYK	cmyk(68.8%, 79.5%, 0%, 31%)
CIE-LAB	lab(27.32, 49.64, -70.37)
CIE-LCH	lch(27.32, 86.12, 305.20°)
OKLab	oklab(39.55% 0.027 -0.2033)
OKLCH	oklch(39.55% 0.205 277.6)
XYZ	xyz(10.0404, 5.2077, 41.5419)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3724B0 #9DB024

analogous

#2457B0 #3724B0 #7D24B0

triadic

#3724B0 #B03724 #24B037

tetradic

#3724B0 #B02457 #9DB024 #24B07D

square

#3724B0 #B02457 #9DB024 #24B07D

split-complementary

#3724B0 #B07D24 #57B024

monochromatic

#170F4A #271A7D #3724B0 #503AD7 #7D6DE1

Accessibility & contrast

On white

10.29

#3724B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#3724B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3724B0

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3724B0	#FFFFFF	#000000	##FFFFFF
##3724B0	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B4

Deuteranopia (green-blind)

#003BAE

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3724b0;
/* rgb */ color: rgb(55, 36, 176);
/* oklch */ color: oklch(39.5% 0.205 277.6);

Tailwind

colors: {
  custom: {
    50: '#8063c9',
    500: '#3724b0',
    950: '#000000',
  },
}

SCSS

$custom: #3724b0;
$custom-light: #8063c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3724b0",
  "rgb": {
    "r": 55,
    "g": 36,
    "b": 176
  },
  "hsl": {
    "h": 248.143,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.39547,
    "c": 0.2051,
    "h": 277.6
  },
  "luminance": 0.05209
}

Semantic roles & 50–950 ramp

primary

#3724B0

secondary

#BBC868

accent

#E93FD2

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3724B0

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

Preview Lab → · Contrast checker → · Palette generator →