#3727A7#3727A7

#3727A7 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 39.0% C 0.192 H 278.3°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#3727A7
RGB	rgb(55, 39, 167)
HSL	hsl(248, 62%, 40%)
HSV	hsv(248, 77%, 65%)
CMYK	cmyk(67.1%, 76.6%, 0%, 34.5%)
CIE-LAB	lab(26.88, 45.34, -65.68)
CIE-LCH	lch(26.88, 79.81, 304.62°)
OKLab	oklab(38.96% 0.0277 -0.1897)
OKLCH	oklch(38.96% 0.192 278.3)
XYZ	xyz(9.2739, 5.0525, 37.0382)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727A7 #97A727

analogous

#2757A7 #3727A7 #7727A7

triadic

#3727A7 #A73727 #27A737

tetradic

#3727A7 #A72757 #97A727 #27A777

square

#3727A7 #A72757 #97A727 #27A777

split-complementary

#3727A7 #A77727 #57A727

monochromatic

#161044 #271B75 #3727A7 #4D3AD1 #7A6CDD

Accessibility & contrast

On white

10.44

#3727A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#3727A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727A7

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727A7	#FFFFFF	#000000	##FFFFFF
##3727A7	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AB

Deuteranopia (green-blind)

#003AA5

Tritanopia (blue-blind)

#004C66

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3727a7;
/* rgb */ color: rgb(55, 39, 167);
/* oklch */ color: oklch(39.0% 0.192 278.3);

Tailwind

colors: {
  custom: {
    50: '#7e64c2',
    500: '#3727a7',
    950: '#000000',
  },
}

SCSS

$custom: #3727a7;
$custom-light: #7e64c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3727a7",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 167
  },
  "hsl": {
    "h": 247.5,
    "s": 62.136,
    "l": 40.392
  },
  "oklch": {
    "l": 0.38958,
    "c": 0.1917,
    "h": 278.3
  },
  "luminance": 0.05053
}

Semantic roles & 50–950 ramp

primary

#3727A7

secondary

#B8C367

accent

#E543D1

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3727A7

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

Preview Lab → · Contrast checker → · Palette generator →