#3639C3#3639C3

#3639C3 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.3% C 0.208 H 273.0°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#3639C3
RGB	rgb(54, 57, 195)
HSL	hsl(239, 57%, 49%)
HSV	hsv(239, 72%, 76%)
CMYK	cmyk(72.3%, 70.8%, 0%, 23.5%)
CIE-LAB	lab(33.24, 44.25, -71.85)
CIE-LCH	lch(33.24, 84.38, 301.63°)
OKLab	oklab(44.3% 0.011 -0.2078)
OKLCH	oklch(44.3% 0.208 273)
XYZ	xyz(12.8315, 7.6494, 52.4194)
Luminance	0.0765 (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

#3639C3 #C3C036

analogous

#3680C3 #3639C3 #7A36C3

triadic

#3639C3 #C33639 #39C336

tetradic

#3639C3 #C33680 #C3C036 #36C37A

square

#3639C3 #C33680 #C3C036 #36C37A

split-complementary

#3639C3 #C37A36 #80C336

monochromatic

#1B1D63 #292B93 #3639C3 #6365D4 #9294E1

Accessibility & contrast

On white

8.30

#3639C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3639C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639C3

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639C3	#FFFFFF	#000000	##FFFFFF
##3639C3	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C7

Deuteranopia (green-blind)

#0047C0

Tritanopia (blue-blind)

#00607A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3639c3;
/* rgb */ color: rgb(54, 57, 195);
/* oklch */ color: oklch(44.3% 0.208 273.0);

Tailwind

colors: {
  custom: {
    50: '#8270d6',
    500: '#3639c3',
    950: '#000000',
  },
}

SCSS

$custom: #3639c3;
$custom-light: #8270d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3639c3",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 195
  },
  "hsl": {
    "h": 238.723,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44302,
    "c": 0.20812,
    "h": 273
  },
  "luminance": 0.07651
}

Semantic roles & 50–950 ramp

primary

#3639C3

secondary

#CCCB89

accent

#DD48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3639C3

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

Preview Lab → · Contrast checker → · Palette generator →