#3729AE#3729AE

#3729AE is a dark, vivid blue. Relative luminance 0.055; OKLCH L 40.0% C 0.198 H 277.2°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#3729AE
RGB	rgb(55, 41, 174)
HSL	hsl(246, 62%, 42%)
HSV	hsv(246, 76%, 68%)
CMYK	cmyk(68.4%, 76.4%, 0%, 31.8%)
CIE-LAB	lab(27.99, 46.48, -68.06)
CIE-LCH	lch(27.99, 82.42, 304.33°)
OKLab	oklab(39.95% 0.0249 -0.1967)
OKLCH	oklch(39.95% 0.198 277.2)
XYZ	xyz(10.0060, 5.4532, 40.5615)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3729AE #A0AE29

analogous

#295DAE #3729AE #7A29AE

triadic

#3729AE #AE3729 #29AE37

tetradic

#3729AE #AE295D #A0AE29 #29AE7A

square

#3729AE #AE295D #A0AE29 #29AE7A

split-complementary

#3729AE #AE7A29 #5DAE29

monochromatic

#18124B #271D7C #3729AE #5142D2 #7F73DE

Accessibility & contrast

On white

10.04

#3729AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3729AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3729AE

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3729AE	#FFFFFF	#000000	##FFFFFF
##3729AE	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B2

Deuteranopia (green-blind)

#003CAC

Tritanopia (blue-blind)

#00506A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3729ae;
/* rgb */ color: rgb(55, 41, 174);
/* oklch */ color: oklch(40.0% 0.198 277.2);

Tailwind

colors: {
  custom: {
    50: '#7f66c7',
    500: '#3729ae',
    950: '#000000',
  },
}

SCSS

$custom: #3729ae;
$custom-light: #7f66c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3729ae",
  "rgb": {
    "r": 55,
    "g": 41,
    "b": 174
  },
  "hsl": {
    "h": 246.316,
    "s": 61.86,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39953,
    "c": 0.19824,
    "h": 277.2
  },
  "luminance": 0.05454
}

Semantic roles & 50–950 ramp

primary

#3729AE

secondary

#BCC56D

accent

#E543D4

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3729AE

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

Preview Lab → · Contrast checker → · Palette generator →