#3637AE#3637AE

#3637AE is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.9% C 0.184 H 274.7°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#3637AE
RGB	rgb(54, 55, 174)
HSL	hsl(240, 53%, 45%)
HSV	hsv(240, 69%, 68%)
CMYK	cmyk(69%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(30.81, 38.33, -63.42)
CIE-LCH	lch(30.81, 74.10, 301.15°)
OKLab	oklab(41.95% 0.0151 -0.1832)
OKLCH	oklch(41.95% 0.184 274.7)
XYZ	xyz(10.5250, 6.5717, 40.7500)
Luminance	0.0657 (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

#3637AE #AEAD36

analogous

#3673AE #3637AE #7136AE

triadic

#3637AE #AE3637 #37AE36

tetradic

#3637AE #AE3673 #AEAD36 #36AE71

square

#3637AE #AE3673 #AEAD36 #36AE71

split-complementary

#3637AE #AE7136 #73AE36

monochromatic

#191951 #28287F #3637AE #5657CB #8586D9

Accessibility & contrast

On white

9.07

#3637AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3637AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3637AE

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3637AE	#FFFFFF	#000000	##FFFFFF
##3637AE	1.00	9.07	2.31	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB2

Deuteranopia (green-blind)

#0043AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3637ae;
/* rgb */ color: rgb(54, 55, 174);
/* oklch */ color: oklch(41.9% 0.184 274.7);

Tailwind

colors: {
  custom: {
    50: '#7d6ec7',
    500: '#3637ae',
    950: '#000000',
  },
}

SCSS

$custom: #3637ae;
$custom-light: #7d6ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3637ae",
  "rgb": {
    "r": 54,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 239.5,
    "s": 52.632,
    "l": 44.706
  },
  "oklch": {
    "l": 0.41948,
    "c": 0.18382,
    "h": 274.7
  },
  "luminance": 0.06573
}

Semantic roles & 50–950 ramp

primary

#3637AE

secondary

#C3C27D

accent

#DB4CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3637AE

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

Preview Lab → · Contrast checker → · Palette generator →