#3720AD#3720AD

#3720AD is a dark, highly saturated blue. Relative luminance 0.049; OKLCH L 38.8% C 0.205 H 278.3°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#3720AD
RGB	rgb(55, 32, 173)
HSL	hsl(250, 69%, 40%)
HSV	hsv(250, 82%, 68%)
CMYK	cmyk(68.2%, 81.5%, 0%, 32.2%)
CIE-LAB	lab(26.34, 50.63, -70.20)
CIE-LCH	lch(26.34, 86.55, 305.80°)
OKLab	oklab(38.77% 0.0296 -0.2028)
OKLCH	oklch(38.77% 0.205 278.3)
XYZ	xyz(9.6325, 4.8615, 39.9578)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3720AD #96AD20

analogous

#2050AD #3720AD #7D20AD

triadic

#3720AD #AD3720 #20AD37

tetradic

#3720AD #AD2050 #96AD20 #20AD7D

square

#3720AD #AD2050 #96AD20 #20AD7D

split-complementary

#3720AD #AD7D20 #50AD20

monochromatic

#160D46 #271679 #3720AD #4D31D9 #7965E2

Accessibility & contrast

On white

10.65

#3720AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#3720AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3720AD

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3720AD	#FFFFFF	#000000	##FFFFFF
##3720AD	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B1

Deuteranopia (green-blind)

#0038AB

Tritanopia (blue-blind)

#004C68

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3720ad;
/* rgb */ color: rgb(55, 32, 173);
/* oklch */ color: oklch(38.8% 0.205 278.3);

Tailwind

colors: {
  custom: {
    50: '#8061c7',
    500: '#3720ad',
    950: '#000000',
  },
}

SCSS

$custom: #3720ad;
$custom-light: #8061c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3720ad",
  "rgb": {
    "r": 55,
    "g": 32,
    "b": 173
  },
  "hsl": {
    "h": 249.787,
    "s": 68.78,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38768,
    "c": 0.20491,
    "h": 278.3
  },
  "luminance": 0.04862
}

Semantic roles & 50–950 ramp

primary

#3720AD

secondary

#B7C861

accent

#EC3CCF

background

#F8F5FC

surface

#F0EAF8

border

#CBC6D1

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #3720AD

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

Preview Lab → · Contrast checker → · Palette generator →