#3727AF#3727AF

#3727AF is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 39.8% C 0.201 H 277.3°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#3727AF
RGB	rgb(55, 39, 175)
HSL	hsl(247, 64%, 42%)
HSV	hsv(247, 78%, 69%)
CMYK	cmyk(68.6%, 77.7%, 0%, 31.4%)
CIE-LAB	lab(27.73, 47.84, -69.09)
CIE-LCH	lch(27.73, 84.04, 304.70°)
OKLab	oklab(39.8% 0.0257 -0.1996)
OKLCH	oklch(39.8% 0.201 277.3)
XYZ	xyz(10.0364, 5.3575, 41.0543)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727AF #9FAF27

analogous

#275BAF #3727AF #7B27AF

triadic

#3727AF #AF3727 #27AF37

tetradic

#3727AF #AF275B #9FAF27 #27AF7B

square

#3727AF #AF275B #9FAF27 #27AF7B

split-complementary

#3727AF #AF7B27 #5BAF27

monochromatic

#18114B #271C7D #3727AF #513FD4 #7E71DF

Accessibility & contrast

On white

10.14

#3727AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3727AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727AF

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727AF	#FFFFFF	#000000	##FFFFFF
##3727AF	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B3

Deuteranopia (green-blind)

#003CAD

Tritanopia (blue-blind)

#004F6A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3727af;
/* rgb */ color: rgb(55, 39, 175);
/* oklch */ color: oklch(39.8% 0.201 277.3);

Tailwind

colors: {
  custom: {
    50: '#7f64c8',
    500: '#3727af',
    950: '#000000',
  },
}

SCSS

$custom: #3727af;
$custom-light: #7f64c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3727af",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 175
  },
  "hsl": {
    "h": 247.059,
    "s": 63.551,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39803,
    "c": 0.20129,
    "h": 277.3
  },
  "luminance": 0.05358
}

Semantic roles & 50–950 ramp

primary

#3727AF

secondary

#BCC66B

accent

#E741D3

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3727AF

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

Preview Lab → · Contrast checker → · Palette generator →