#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
RGBrgb(55, 36, 169)
HSLhsl(249, 65%, 40%)
HSVhsv(249, 79%, 66%)
CMYKcmyk(67.5%, 78.7%, 0%, 33.7%)
CIE-LABlab(26.56, 47.51, -67.42)
CIE-LCHlch(26.56, 82.48, 305.17°)
OKLaboklab(38.79% 0.0289 -0.1947)
OKLCHoklch(38.79% 0.197 278.4)
XYZxyz(9.3656, 4.9378, 37.9880)
Luminance0.0494 (WCAG relative)
Temperaturecool
Familyblue

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
##3724A91.0010.561.9910.56
#FFFFFF10.561.0021.001.00
#0000001.9921.001.0021.00
##FFFFFF10.561.0021.001.00

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 →

#3724A9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva