#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
RGB	rgb(55, 54, 185)
HSL	hsl(240, 55%, 47%)
HSV	hsv(240, 71%, 73%)
CMYK	cmyk(70.3%, 70.8%, 0%, 27.5%)
CIE-LAB	lab(31.70, 42.77, -68.50)
CIE-LCH	lch(31.70, 80.76, 301.98°)
OKLab	oklab(42.92% 0.0154 -0.198)
OKLCH	oklch(42.92% 0.199 274.4)
XYZ	xyz(11.6488, 6.9522, 46.6176)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

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
##3736B9	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

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 →