#3639BE#3639BE

#3639BE is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.8% C 0.202 H 273.3°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3639BE
RGB	rgb(54, 57, 190)
HSL	hsl(239, 56%, 48%)
HSV	hsv(239, 72%, 75%)
CMYK	cmyk(71.6%, 70%, 0%, 25.5%)
CIE-LAB	lab(32.76, 42.57, -69.71)
CIE-LCH	lch(32.76, 81.68, 301.41°)
OKLab	oklab(43.81% 0.0117 -0.2016)
OKLCH	oklch(43.81% 0.202 273.3)
XYZ	xyz(12.2756, 7.4270, 49.4918)
Luminance	0.0743 (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

#3639BE #BEBB36

analogous

#367DBE #3639BE #7736BE

triadic

#3639BE #BE3639 #39BE36

tetradic

#3639BE #BE367D #BEBB36 #36BE77

square

#3639BE #BE367D #BEBB36 #36BE77

split-complementary

#3639BE #BE7736 #7DBE36

monochromatic

#1B1C5F #282B8E #3639BE #6062D2 #8F91DF

Accessibility & contrast

On white

8.45

#3639BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3639BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639BE

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639BE	#FFFFFF	#000000	##FFFFFF
##3639BE	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C2

Deuteranopia (green-blind)

#0047BC

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3639be;
/* rgb */ color: rgb(54, 57, 190);
/* oklch */ color: oklch(43.8% 0.202 273.3);

Tailwind

colors: {
  custom: {
    50: '#8170d3',
    500: '#3639be',
    950: '#000000',
  },
}

SCSS

$custom: #3639be;
$custom-light: #8170d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3639be",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 190
  },
  "hsl": {
    "h": 238.676,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43811,
    "c": 0.20191,
    "h": 273.3
  },
  "luminance": 0.07428
}

Semantic roles & 50–950 ramp

primary

#3639BE

secondary

#CAC886

accent

#DC49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3639BE

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

Preview Lab → · Contrast checker → · Palette generator →