#3720AC#3720AC

#3720AC is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.7% C 0.204 H 278.4°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#3720AC
RGB	rgb(55, 32, 172)
HSL	hsl(250, 69%, 40%)
HSV	hsv(250, 81%, 67%)
CMYK	cmyk(68%, 81.4%, 0%, 32.5%)
CIE-LAB	lab(26.22, 50.33, -69.78)
CIE-LCH	lch(26.22, 86.04, 305.80°)
OKLab	oklab(38.66% 0.0299 -0.2015)
OKLCH	oklch(38.66% 0.204 278.4)
XYZ	xyz(9.5361, 4.8230, 39.4501)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3720AC #95AC20

analogous

#204FAC #3720AC #7D20AC

triadic

#3720AC #AC3720 #20AC37

tetradic

#3720AC #AC204F #95AC20 #20AC7D

square

#3720AC #AC204F #95AC20 #20AC7D

split-complementary

#3720AC #AC7D20 #4FAC20

monochromatic

#160D45 #261678 #3720AC #4C31D9 #7964E2

Accessibility & contrast

On white

10.69

#3720AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3720AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3720AC

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3720AC	#FFFFFF	#000000	##FFFFFF
##3720AC	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B0

Deuteranopia (green-blind)

#0038AA

Tritanopia (blue-blind)

#004C67

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3720ac;
/* rgb */ color: rgb(55, 32, 172);
/* oklch */ color: oklch(38.7% 0.204 278.4);

Tailwind

colors: {
  custom: {
    50: '#7f60c6',
    500: '#3720ac',
    950: '#000000',
  },
}

SCSS

$custom: #3720ac;
$custom-light: #7f60c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3720ac",
  "rgb": {
    "r": 55,
    "g": 32,
    "b": 172
  },
  "hsl": {
    "h": 249.857,
    "s": 68.627,
    "l": 40
  },
  "oklch": {
    "l": 0.38658,
    "c": 0.20376,
    "h": 278.4
  },
  "luminance": 0.04824
}

Semantic roles & 50–950 ramp

primary

#3720AC

secondary

#B6C760

accent

#EB3CCF

background

#F8F5FC

surface

#F0EAF8

border

#CBC6D1

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #3720AC

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

Preview Lab → · Contrast checker → · Palette generator →