#3638BC#3638BC

#3638BC is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.5% C 0.200 H 273.6°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#3638BC
RGB	rgb(54, 56, 188)
HSL	hsl(239, 55%, 47%)
HSV	hsv(239, 71%, 74%)
CMYK	cmyk(71.3%, 70.2%, 0%, 26.3%)
CIE-LAB	lab(32.35, 42.48, -69.20)
CIE-LCH	lch(32.35, 81.20, 301.55°)
OKLab	oklab(43.46% 0.0126 -0.2001)
OKLCH	oklch(43.46% 0.2 273.6)
XYZ	xyz(12.0096, 7.2423, 48.3322)
Luminance	0.0724 (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

#3638BC #BCBA36

analogous

#367BBC #3638BC #7736BC

triadic

#3638BC #BC3638 #38BC36

tetradic

#3638BC #BC367B #BCBA36 #36BC77

square

#3638BC #BC367B #BCBA36 #36BC77

split-complementary

#3638BC #BC7736 #7BBC36

monochromatic

#1B1C5D #282A8C #3638BC #5E60D1 #8E8FDF

Accessibility & contrast

On white

8.58

#3638BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3638BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638BC

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638BC	#FFFFFF	#000000	##FFFFFF
##3638BC	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C0

Deuteranopia (green-blind)

#0046BA

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3638bc;
/* rgb */ color: rgb(54, 56, 188);
/* oklch */ color: oklch(43.5% 0.200 273.6);

Tailwind

colors: {
  custom: {
    50: '#8070d1',
    500: '#3638bc',
    950: '#000000',
  },
}

SCSS

$custom: #3638bc;
$custom-light: #8070d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3638bc",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 188
  },
  "hsl": {
    "h": 239.104,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.4346,
    "c": 0.20048,
    "h": 273.6
  },
  "luminance": 0.07243
}

Semantic roles & 50–950 ramp

primary

#3638BC

secondary

#C9C885

accent

#DC49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3638BC

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

Preview Lab → · Contrast checker → · Palette generator →