#3639C1#3639C1

#3639C1 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.1% C 0.206 H 273.2°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#3639C1
RGB	rgb(54, 57, 193)
HSL	hsl(239, 56%, 48%)
HSV	hsv(239, 72%, 76%)
CMYK	cmyk(72%, 70.5%, 0%, 24.3%)
CIE-LAB	lab(33.05, 43.58, -71.00)
CIE-LCH	lch(33.05, 83.30, 301.54°)
OKLab	oklab(44.11% 0.0113 -0.2053)
OKLCH	oklch(44.11% 0.206 273.2)
XYZ	xyz(12.6069, 7.5595, 51.2365)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.29

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3639C1 #C1BE36

analogous

#367EC1 #3639C1 #7836C1

triadic

#3639C1 #C13639 #39C136

tetradic

#3639C1 #C1367E #C1BE36 #36C178

square

#3639C1 #C1367E #C1BE36 #36C178

split-complementary

#3639C1 #C17836 #7EC136

monochromatic

#1B1D61 #292B91 #3639C1 #6164D3 #9193E0

Accessibility & contrast

On white

8.36

#3639C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3639C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639C1

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639C1	#FFFFFF	#000000	##FFFFFF
##3639C1	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C5

Deuteranopia (green-blind)

#0047BF

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3639c1;
/* rgb */ color: rgb(54, 57, 193);
/* oklch */ color: oklch(44.1% 0.206 273.2);

Tailwind

colors: {
  custom: {
    50: '#8170d5',
    500: '#3639c1',
    950: '#000000',
  },
}

SCSS

$custom: #3639c1;
$custom-light: #8170d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3639c1",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 193
  },
  "hsl": {
    "h": 238.705,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44105,
    "c": 0.20564,
    "h": 273.2
  },
  "luminance": 0.07561
}

Semantic roles & 50–950 ramp

primary

#3639C1

secondary

#CBCA88

accent

#DC48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3639C1

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

Preview Lab → · Contrast checker → · Palette generator →