#3724B3#3724B3

#3724B3 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.9% C 0.209 H 277.2°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#3724B3
RGB	rgb(55, 36, 179)
HSL	hsl(248, 67%, 42%)
HSV	hsv(248, 80%, 70%)
CMYK	cmyk(69.3%, 79.9%, 0%, 29.8%)
CIE-LAB	lab(27.65, 50.55, -71.62)
CIE-LCH	lch(27.65, 87.66, 305.22°)
OKLab	oklab(39.87% 0.0261 -0.2069)
OKLCH	oklch(39.87% 0.209 277.2)
XYZ	xyz(10.3405, 5.3277, 43.1225)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3724B3 #A0B324

analogous

#2459B3 #3724B3 #7F24B3

triadic

#3724B3 #B33724 #24B337

tetradic

#3724B3 #B32459 #A0B324 #24B37F

square

#3724B3 #B32459 #A0B324 #24B37F

split-complementary

#3724B3 #B37F24 #59B324

monochromatic

#18104D #271A80 #3724B3 #513CD8 #7F6FE2

Accessibility & contrast

On white

10.17

#3724B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3724B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3724B3

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3724B3	#FFFFFF	#000000	##FFFFFF
##3724B3	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B7

Deuteranopia (green-blind)

#003BB1

Tritanopia (blue-blind)

#00506C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3724b3;
/* rgb */ color: rgb(55, 36, 179);
/* oklch */ color: oklch(39.9% 0.209 277.2);

Tailwind

colors: {
  custom: {
    50: '#8163cb',
    500: '#3724b3',
    950: '#000000',
  },
}

SCSS

$custom: #3724b3;
$custom-light: #8163cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3724b3",
  "rgb": {
    "r": 55,
    "g": 36,
    "b": 179
  },
  "hsl": {
    "h": 247.972,
    "s": 66.512,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39874,
    "c": 0.20859,
    "h": 277.2
  },
  "luminance": 0.05329
}

Semantic roles & 50–950 ramp

primary

#3724B3

secondary

#BCC96A

accent

#E93ED3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3724B3

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

Preview Lab → · Contrast checker → · Palette generator →