#3639C6#3639C6

#3639C6 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.6% C 0.212 H 272.9°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3639C6
RGB	rgb(54, 57, 198)
HSL	hsl(239, 57%, 49%)
HSV	hsv(239, 73%, 78%)
CMYK	cmyk(72.7%, 71.2%, 0%, 22.4%)
CIE-LAB	lab(33.53, 45.25, -73.12)
CIE-LCH	lch(33.53, 85.99, 301.75°)
OKLab	oklab(44.6% 0.0106 -0.2115)
OKLCH	oklch(44.6% 0.212 272.9)
XYZ	xyz(13.1741, 7.7864, 54.2238)
Luminance	0.0779 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.26

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3639C6 #C6C336

analogous

#3681C6 #3639C6 #7B36C6

triadic

#3639C6 #C63639 #39C636

tetradic

#3639C6 #C63681 #C6C336 #36C67B

square

#3639C6 #C63681 #C6C336 #36C67B

split-complementary

#3639C6 #C67B36 #81C636

monochromatic

#1C1D66 #292B96 #3639C6 #6467D5 #9496E2

Accessibility & contrast

On white

8.21

#3639C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3639C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639C6

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639C6	#FFFFFF	#000000	##FFFFFF
##3639C6	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CA

Deuteranopia (green-blind)

#0048C3

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3639c6;
/* rgb */ color: rgb(54, 57, 198);
/* oklch */ color: oklch(44.6% 0.212 272.9);

Tailwind

colors: {
  custom: {
    50: '#8371d9',
    500: '#3639c6',
    950: '#000000',
  },
}

SCSS

$custom: #3639c6;
$custom-light: #8371d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3639c6",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 198
  },
  "hsl": {
    "h": 238.75,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.446,
    "c": 0.2118,
    "h": 272.9
  },
  "luminance": 0.07788
}

Semantic roles & 50–950 ramp

primary

#3639C6

secondary

#CDCC8B

accent

#DD47E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3639C6

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

Preview Lab → · Contrast checker → · Palette generator →