#3720A8#3720A8

#3720A8 is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.2% C 0.199 H 279.0°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#3720A8
RGB	rgb(55, 32, 168)
HSL	hsl(250, 68%, 39%)
HSV	hsv(250, 81%, 66%)
CMYK	cmyk(67.3%, 81%, 0%, 34.1%)
CIE-LAB	lab(25.78, 49.14, -68.11)
CIE-LCH	lch(25.78, 83.99, 305.81°)
OKLab	oklab(38.22% 0.0311 -0.1967)
OKLCH	oklch(38.22% 0.199 279)
XYZ	xyz(9.1577, 4.6716, 37.4573)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3720A8 #91A820

analogous

#204DA8 #3720A8 #7B20A8

triadic

#3720A8 #A83720 #20A837

tetradic

#3720A8 #A8204D #91A820 #20A87B

square

#3720A8 #A8204D #91A820 #20A87B

split-complementary

#3720A8 #A87B20 #4DA820

monochromatic

#150C41 #261675 #3720A8 #4B2ED7 #7761E1

Accessibility & contrast

On white

10.86

#3720A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#3720A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3720A8

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3720A8	#FFFFFF	#000000	##FFFFFF
##3720A8	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AC

Deuteranopia (green-blind)

#0038A6

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3720a8;
/* rgb */ color: rgb(55, 32, 168);
/* oklch */ color: oklch(38.2% 0.199 279.0);

Tailwind

colors: {
  custom: {
    50: '#7f60c3',
    500: '#3720a8',
    950: '#000000',
  },
}

SCSS

$custom: #3720a8;
$custom-light: #7f60c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3720a8",
  "rgb": {
    "r": 55,
    "g": 32,
    "b": 168
  },
  "hsl": {
    "h": 250.147,
    "s": 68,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38217,
    "c": 0.19914,
    "h": 279
  },
  "luminance": 0.04672
}

Semantic roles & 50–950 ramp

primary

#3720A8

secondary

#B4C65E

accent

#EB3DCD

background

#F8F5FC

surface

#F0EAF8

border

#CBC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #3720A8

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

Preview Lab → · Contrast checker → · Palette generator →