#3639C5#3639C5

#3639C5 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.5% C 0.211 H 272.9°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#3639C5
RGB	rgb(54, 57, 197)
HSL	hsl(239, 57%, 49%)
HSV	hsv(239, 73%, 77%)
CMYK	cmyk(72.6%, 71.1%, 0%, 22.7%)
CIE-LAB	lab(33.44, 44.92, -72.70)
CIE-LCH	lch(33.44, 85.46, 301.71°)
OKLab	oklab(44.5% 0.0107 -0.2103)
OKLCH	oklch(44.5% 0.211 272.9)
XYZ	xyz(13.0591, 7.7404, 53.6183)
Luminance	0.0774 (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

#3639C5 #C5C236

analogous

#3681C5 #3639C5 #7B36C5

triadic

#3639C5 #C53639 #39C536

tetradic

#3639C5 #C53681 #C5C236 #36C57B

square

#3639C5 #C53681 #C5C236 #36C57B

split-complementary

#3639C5 #C57B36 #81C536

monochromatic

#1C1D65 #292B95 #3639C5 #6466D4 #9495E2

Accessibility & contrast

On white

8.24

#3639C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3639C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639C5

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639C5	#FFFFFF	#000000	##FFFFFF
##3639C5	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C9

Deuteranopia (green-blind)

#0048C2

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3639c5;
/* rgb */ color: rgb(54, 57, 197);
/* oklch */ color: oklch(44.5% 0.211 272.9);

Tailwind

colors: {
  custom: {
    50: '#8270d8',
    500: '#3639c5',
    950: '#000000',
  },
}

SCSS

$custom: #3639c5;
$custom-light: #8270d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3639c5",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 197
  },
  "hsl": {
    "h": 238.741,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.445,
    "c": 0.21058,
    "h": 272.9
  },
  "luminance": 0.07742
}

Semantic roles & 50–950 ramp

primary

#3639C5

secondary

#CDCB8A

accent

#DD48E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3639C5

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

Preview Lab → · Contrast checker → · Palette generator →