#3724B4#3724B4

#3724B4 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 40.0% C 0.210 H 277.1°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#3724B4
RGB	rgb(55, 36, 180)
HSL	hsl(248, 67%, 42%)
HSV	hsv(248, 80%, 71%)
CMYK	cmyk(69.4%, 80%, 0%, 29.4%)
CIE-LAB	lab(27.76, 50.85, -72.03)
CIE-LCH	lch(27.76, 88.17, 305.22°)
OKLab	oklab(39.98% 0.0259 -0.2081)
OKLCH	oklch(39.98% 0.21 277.1)
XYZ	xyz(10.4420, 5.3683, 43.6571)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3724B4 #A1B424

analogous

#2459B4 #3724B4 #7F24B4

triadic

#3724B4 #B43724 #24B437

tetradic

#3724B4 #B42459 #A1B424 #24B47F

square

#3724B4 #B42459 #A1B424 #24B47F

split-complementary

#3724B4 #B47F24 #59B424

monochromatic

#18104E #271A81 #3724B4 #513DD8 #7F70E2

Accessibility & contrast

On white

10.13

#3724B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3724B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3724B4

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3724B4	#FFFFFF	#000000	##FFFFFF
##3724B4	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B8

Deuteranopia (green-blind)

#003BB2

Tritanopia (blue-blind)

#00506C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3724b4;
/* rgb */ color: rgb(55, 36, 180);
/* oklch */ color: oklch(40.0% 0.210 277.1);

Tailwind

colors: {
  custom: {
    50: '#8163cc',
    500: '#3724b4',
    950: '#000000',
  },
}

SCSS

$custom: #3724b4;
$custom-light: #8163cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3724b4",
  "rgb": {
    "r": 55,
    "g": 36,
    "b": 180
  },
  "hsl": {
    "h": 247.917,
    "s": 66.667,
    "l": 42.353
  },
  "oklch": {
    "l": 0.39983,
    "c": 0.20975,
    "h": 277.1
  },
  "luminance": 0.05369
}

Semantic roles & 50–950 ramp

primary

#3724B4

secondary

#BDC96B

accent

#EA3ED3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0514

muted

#7D7A82

Preview Lab

Preview with #3724B4

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

Preview Lab → · Contrast checker → · Palette generator →