#3736B9#3736B9

#3736B9 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.199 H 274.4°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX#3736B9
RGBrgb(55, 54, 185)
HSLhsl(240, 55%, 47%)
HSVhsv(240, 71%, 73%)
CMYKcmyk(70.3%, 70.8%, 0%, 27.5%)
CIE-LABlab(31.70, 42.77, -68.50)
CIE-LCHlch(31.70, 80.76, 301.98°)
OKLaboklab(42.92% 0.0154 -0.198)
OKLCHoklch(42.92% 0.199 274.4)
XYZxyz(11.6488, 6.9522, 46.6176)
Luminance0.0695 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3736B9 #B8B936
analogous
#3677B9 #3736B9 #7936B9
triadic
#3736B9 #B93736 #36B937
tetradic
#3736B9 #B93677 #B8B936 #36B979
square
#3736B9 #B93677 #B8B936 #36B979
split-complementary
#3736B9 #B97936 #77B936
monochromatic
#1B1A5A #29288A #3736B9 #5D5DD0 #8D8CDD

Accessibility & contrast

On white

8.78
#3736B9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.39
#3736B9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3736B9
8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3736B9#FFFFFF#000000##FFFFFF
##3736B91.008.782.398.78
#FFFFFF8.781.0021.001.00
#0000002.3921.001.0021.00
##FFFFFF8.781.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0051BD
Deuteranopia (green-blind)
#0044B7
Tritanopia (blue-blind)
#005A74
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #3736b9;
/* rgb */ color: rgb(55, 54, 185);
/* oklch */ color: oklch(42.9% 0.199 274.4);
Tailwind
colors: {
  custom: {
    50: '#806ecf',
    500: '#3736b9',
    950: '#000000',
  },
}
SCSS
$custom: #3736b9;
$custom-light: #806ecf;
$custom-dark: #000000;
JSON
{
  "hex": "#3736b9",
  "rgb": {
    "r": 55,
    "g": 54,
    "b": 185
  },
  "hsl": {
    "h": 240.458,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.4292,
    "c": 0.19862,
    "h": 274.4
  },
  "luminance": 0.06953
}

Semantic roles & 50–950 ramp

primary
#3736B9
secondary
#C7C883
accent
#DE4ADD
background
#F8F6FC
surface
#F0ECF9
border
#CBC7D2
text
#0C0714
muted
#7D7A82

Preview Lab

Preview with #3736B9

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

Preview Lab → · Contrast checker → · Palette generator →

#3736B9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva