#3639B6#3639B6

#3639B6 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.192 H 273.8°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#3639B6
RGB	rgb(54, 57, 182)
HSL	hsl(239, 54%, 46%)
HSV	hsv(239, 70%, 71%)
CMYK	cmyk(70.3%, 68.7%, 0%, 28.6%)
CIE-LAB	lab(32.00, 39.85, -66.22)
CIE-LCH	lch(32.00, 77.29, 301.04°)
OKLab	oklab(43.04% 0.0127 -0.1914)
OKLCH	oklch(43.04% 0.192 273.8)
XYZ	xyz(11.4251, 7.0868, 45.0127)
Luminance	0.0709 (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

#3639B6 #B6B336

analogous

#3679B6 #3639B6 #7336B6

triadic

#3639B6 #B63639 #39B636

tetradic

#3639B6 #B63679 #B6B336 #36B673

square

#3639B6 #B63679 #B6B336 #36B673

split-complementary

#3639B6 #B67336 #79B636

monochromatic

#1A1B58 #282A87 #3639B6 #5B5ECE #8A8CDC

Accessibility & contrast

On white

8.69

#3639B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3639B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639B6

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639B6	#FFFFFF	#000000	##FFFFFF
##3639B6	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3639b6;
/* rgb */ color: rgb(54, 57, 182);
/* oklch */ color: oklch(43.0% 0.192 273.8);

Tailwind

colors: {
  custom: {
    50: '#7f70cd',
    500: '#3639b6',
    950: '#000000',
  },
}

SCSS

$custom: #3639b6;
$custom-light: #7f70cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3639b6",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 182
  },
  "hsl": {
    "h": 238.594,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43037,
    "c": 0.19182,
    "h": 273.8
  },
  "luminance": 0.07088
}

Semantic roles & 50–950 ramp

primary

#3639B6

secondary

#C6C581

accent

#DA4ADE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3639B6

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

Preview Lab → · Contrast checker → · Palette generator →