#3724A9#3724A9

#3724A9 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.8% C 0.197 H 278.4°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#3724A9
RGB	rgb(55, 36, 169)
HSL	hsl(249, 65%, 40%)
HSV	hsv(249, 79%, 66%)
CMYK	cmyk(67.5%, 78.7%, 0%, 33.7%)
CIE-LAB	lab(26.56, 47.51, -67.42)
CIE-LCH	lch(26.56, 82.48, 305.17°)
OKLab	oklab(38.79% 0.0289 -0.1947)
OKLCH	oklch(38.79% 0.197 278.4)
XYZ	xyz(9.3656, 4.9378, 37.9880)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3724A9 #96A924

analogous

#2454A9 #3724A9 #7924A9

triadic

#3724A9 #A93724 #24A937

tetradic

#3724A9 #A92454 #96A924 #24A979

square

#3724A9 #A92454 #96A924 #24A979

split-complementary

#3724A9 #A97924 #54A924

monochromatic

#160F44 #271977 #3724A9 #4D36D4 #7968DF

Accessibility & contrast

On white

10.56

#3724A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#3724A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3724A9

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3724A9	#FFFFFF	#000000	##FFFFFF
##3724A9	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0039A7

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3724a9;
/* rgb */ color: rgb(55, 36, 169);
/* oklch */ color: oklch(38.8% 0.197 278.4);

Tailwind

colors: {
  custom: {
    50: '#7e62c4',
    500: '#3724a9',
    950: '#000000',
  },
}

SCSS

$custom: #3724a9;
$custom-light: #7e62c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3724a9",
  "rgb": {
    "r": 55,
    "g": 36,
    "b": 169
  },
  "hsl": {
    "h": 248.571,
    "s": 64.878,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38791,
    "c": 0.19688,
    "h": 278.4
  },
  "luminance": 0.04939
}

Semantic roles & 50–950 ramp

primary

#3724A9

secondary

#B7C564

accent

#E840D0

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0513

muted

#7C7A82

Preview Lab

Preview with #3724A9

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

Preview Lab → · Contrast checker → · Palette generator →