#3727AC#3727AC

#3727AC is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.5% C 0.198 H 277.7°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#3727AC
RGB	rgb(55, 39, 172)
HSL	hsl(247, 63%, 41%)
HSV	hsv(247, 77%, 67%)
CMYK	cmyk(68%, 77.3%, 0%, 32.5%)
CIE-LAB	lab(27.41, 46.91, -67.82)
CIE-LCH	lch(27.41, 82.46, 304.67°)
OKLab	oklab(39.48% 0.0265 -0.1959)
OKLCH	oklch(39.48% 0.198 277.7)
XYZ	xyz(9.7451, 5.2410, 39.5198)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727AC #9CAC27

analogous

#275AAC #3727AC #7A27AC

triadic

#3727AC #AC3727 #27AC37

tetradic

#3727AC #AC275A #9CAC27 #27AC7A

square

#3727AC #AC275A #9CAC27 #27AC7A

split-complementary

#3727AC #AC7A27 #5AAC27

monochromatic

#171048 #271C7A #3727AC #4F3DD3 #7C6FDE

Accessibility & contrast

On white

10.25

#3727AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#3727AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727AC

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727AC	#FFFFFF	#000000	##FFFFFF
##3727AC	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B0

Deuteranopia (green-blind)

#003BAA

Tritanopia (blue-blind)

#004E68

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3727ac;
/* rgb */ color: rgb(55, 39, 172);
/* oklch */ color: oklch(39.5% 0.198 277.7);

Tailwind

colors: {
  custom: {
    50: '#7f64c6',
    500: '#3727ac',
    950: '#000000',
  },
}

SCSS

$custom: #3727ac;
$custom-light: #7f64c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3727ac",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 172
  },
  "hsl": {
    "h": 247.218,
    "s": 63.033,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39484,
    "c": 0.19771,
    "h": 277.7
  },
  "luminance": 0.05242
}

Semantic roles & 50–950 ramp

primary

#3727AC

secondary

#BAC56A

accent

#E642D2

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3727AC

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

Preview Lab → · Contrast checker → · Palette generator →