#3639BD#3639BD

#3639BD is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.7% C 0.201 H 273.4°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#3639BD
RGB	rgb(54, 57, 189)
HSL	hsl(239, 56%, 48%)
HSV	hsv(239, 71%, 74%)
CMYK	cmyk(71.4%, 69.8%, 0%, 25.9%)
CIE-LAB	lab(32.66, 42.23, -69.28)
CIE-LCH	lch(32.66, 81.13, 301.37°)
OKLab	oklab(43.71% 0.0119 -0.2003)
OKLCH	oklch(43.71% 0.201 273.4)
XYZ	xyz(12.1667, 7.3834, 48.9182)
Luminance	0.0738 (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

#3639BD #BDBA36

analogous

#367CBD #3639BD #7736BD

triadic

#3639BD #BD3639 #39BD36

tetradic

#3639BD #BD367C #BDBA36 #36BD77

square

#3639BD #BD367C #BDBA36 #36BD77

split-complementary

#3639BD #BD7736 #7CBD36

monochromatic

#1B1C5E #282B8D #3639BD #5F61D1 #8F90DF

Accessibility & contrast

On white

8.48

#3639BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3639BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639BD

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639BD	#FFFFFF	#000000	##FFFFFF
##3639BD	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C1

Deuteranopia (green-blind)

#0046BB

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3639bd;
/* rgb */ color: rgb(54, 57, 189);
/* oklch */ color: oklch(43.7% 0.201 273.4);

Tailwind

colors: {
  custom: {
    50: '#8170d2',
    500: '#3639bd',
    950: '#000000',
  },
}

SCSS

$custom: #3639bd;
$custom-light: #8170d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3639bd",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 189
  },
  "hsl": {
    "h": 238.667,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.43713,
    "c": 0.20066,
    "h": 273.4
  },
  "luminance": 0.07385
}

Semantic roles & 50–950 ramp

primary

#3639BD

secondary

#C9C885

accent

#DC49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3639BD

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

Preview Lab → · Contrast checker → · Palette generator →