#3727A3#3727A3

#3727A3 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.5% C 0.187 H 278.8°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#3727A3
RGB	rgb(55, 39, 163)
HSL	hsl(248, 61%, 40%)
HSV	hsv(248, 76%, 64%)
CMYK	cmyk(66.3%, 76.1%, 0%, 36.1%)
CIE-LAB	lab(26.47, 44.08, -63.94)
CIE-LCH	lch(26.47, 77.66, 304.58°)
OKLab	oklab(38.54% 0.0287 -0.1846)
OKLCH	oklch(38.54% 0.187 278.8)
XYZ	xyz(8.9098, 4.9069, 35.1208)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727A3 #93A327

analogous

#2755A3 #3727A3 #7527A3

triadic

#3727A3 #A33727 #27A337

tetradic

#3727A3 #A32755 #93A327 #27A375

square

#3727A3 #A32755 #93A327 #27A375

split-complementary

#3727A3 #A37527 #55A327

monochromatic

#160F40 #261B72 #3727A3 #4B38CF #7869DB

Accessibility & contrast

On white

10.60

#3727A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#3727A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727A3

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727A3	#FFFFFF	#000000	##FFFFFF
##3727A3	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043A7

Deuteranopia (green-blind)

#003AA1

Tritanopia (blue-blind)

#004B63

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3727a3;
/* rgb */ color: rgb(55, 39, 163);
/* oklch */ color: oklch(38.5% 0.187 278.8);

Tailwind

colors: {
  custom: {
    50: '#7d64bf',
    500: '#3727a3',
    950: '#000000',
  },
}

SCSS

$custom: #3727a3;
$custom-light: #7d64bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3727a3",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 163
  },
  "hsl": {
    "h": 247.742,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.3854,
    "c": 0.18686,
    "h": 278.8
  },
  "luminance": 0.04908
}

Semantic roles & 50–950 ramp

primary

#3727A3

secondary

#B5C164

accent

#E443D0

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0512

muted

#7C7A81

Preview Lab

Preview with #3727A3

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

Preview Lab → · Contrast checker → · Palette generator →