#3638BF#3638BF

#3638BF is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.8% C 0.204 H 273.4°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#3638BF
RGB	rgb(54, 56, 191)
HSL	hsl(239, 56%, 48%)
HSV	hsv(239, 72%, 75%)
CMYK	cmyk(71.7%, 70.7%, 0%, 25.1%)
CIE-LAB	lab(32.64, 43.49, -70.49)
CIE-LCH	lch(32.64, 82.83, 301.68°)
OKLab	oklab(43.76% 0.0122 -0.2039)
OKLCH	oklch(43.76% 0.204 273.4)
XYZ	xyz(12.3363, 7.3730, 50.0531)
Luminance	0.0737 (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

#3638BF #BFBD36

analogous

#367CBF #3638BF #7836BF

triadic

#3638BF #BF3638 #38BF36

tetradic

#3638BF #BF367C #BFBD36 #36BF78

square

#3638BF #BF367C #BFBD36 #36BF78

split-complementary

#3638BF #BF7836 #7CBF36

monochromatic

#1B1C60 #292A8F #3638BF #6062D2 #9091E0

Accessibility & contrast

On white

8.49

#3638BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3638BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638BF

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638BF	#FFFFFF	#000000	##FFFFFF
##3638BF	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C3

Deuteranopia (green-blind)

#0046BD

Tritanopia (blue-blind)

#005E77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3638bf;
/* rgb */ color: rgb(54, 56, 191);
/* oklch */ color: oklch(43.8% 0.204 273.4);

Tailwind

colors: {
  custom: {
    50: '#8170d4',
    500: '#3638bf',
    950: '#000000',
  },
}

SCSS

$custom: #3638bf;
$custom-light: #8170d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3638bf",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 191
  },
  "hsl": {
    "h": 239.124,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.43755,
    "c": 0.20422,
    "h": 273.4
  },
  "luminance": 0.07374
}

Semantic roles & 50–950 ramp

primary

#3638BF

secondary

#CAC987

accent

#DD49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3638BF

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

Preview Lab → · Contrast checker → · Palette generator →