#3736D9#3736D9

#3736D9 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.2% C 0.237 H 272.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3736D9
RGB	rgb(55, 54, 217)
HSL	hsl(240, 68%, 53%)
HSV	hsv(240, 75%, 85%)
CMYK	cmyk(74.7%, 75.1%, 0%, 14.9%)
CIE-LAB	lab(34.92, 53.19, -81.85)
CIE-LCH	lch(34.92, 97.61, 303.01°)
OKLab	oklab(46.17% 0.0099 -0.2369)
OKLCH	oklch(46.17% 0.237 272.4)
XYZ	xyz(15.4149, 8.4587, 66.4525)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.38

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3736D9 #D8D936

analogous

#3686D9 #3736D9 #8836D9

triadic

#3736D9 #D93736 #36D937

tetradic

#3736D9 #D93686 #D8D936 #36D988

square

#3736D9 #D93686 #D8D936 #36D988

split-complementary

#3736D9 #D98836 #86D936

monochromatic

#18187D #2221B0 #3736D9 #6A69E3 #9D9DEC

Accessibility & contrast

On white

7.80

#3736D9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3736D9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3736D9

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3736D9	#FFFFFF	#000000	##FFFFFF
##3736D9	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ADE

Deuteranopia (green-blind)

#004AD6

Tritanopia (blue-blind)

#006686

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3736d9;
/* rgb */ color: rgb(55, 54, 217);
/* oklch */ color: oklch(46.2% 0.237 272.4);

Tailwind

colors: {
  custom: {
    50: '#8770e6',
    500: '#3736d9',
    950: '#000000',
  },
}

SCSS

$custom: #3736d9;
$custom-light: #8770e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3736d9",
  "rgb": {
    "r": 55,
    "g": 54,
    "b": 217
  },
  "hsl": {
    "h": 240.368,
    "s": 68.201,
    "l": 53.137
  },
  "oklch": {
    "l": 0.46173,
    "c": 0.23712,
    "h": 272.4
  },
  "luminance": 0.0846
}

Semantic roles & 50–950 ramp

primary

#3736D9

secondary

#D8D992

accent

#EB3DEA

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3736D9

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

Preview Lab → · Contrast checker → · Palette generator →