#3921A4#3921A4

#3921A4 is a dark, vivid violet. Relative luminance 0.046; OKLCH L 38.1% C 0.193 H 280.4°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#3921A4
RGB	rgb(57, 33, 164)
HSL	hsl(251, 66%, 39%)
HSV	hsv(251, 80%, 64%)
CMYK	cmyk(65.2%, 79.9%, 0%, 35.7%)
CIE-LAB	lab(25.68, 47.67, -65.85)
CIE-LCH	lch(25.68, 81.29, 305.90°)
OKLab	oklab(38.06% 0.0348 -0.1901)
OKLCH	oklch(38.06% 0.193 280.4)
XYZ	xyz(8.9299, 4.6372, 35.5392)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3921A4 #8CA421

analogous

#214BA4 #3921A4 #7A21A4

triadic

#3921A4 #A43921 #21A439

tetradic

#3921A4 #A4214B #8CA421 #21A47A

square

#3921A4 #A4214B #8CA421 #21A47A

split-complementary

#3921A4 #A47A21 #4BA421

monochromatic

#160C3E #271771 #3921A4 #4C2DD5 #7860DF

Accessibility & contrast

On white

10.89

#3921A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#3921A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3921A4

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3921A4	#FFFFFF	#000000	##FFFFFF
##3921A4	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A8

Deuteranopia (green-blind)

#0038A2

Tritanopia (blue-blind)

#004963

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3921a4;
/* rgb */ color: rgb(57, 33, 164);
/* oklch */ color: oklch(38.1% 0.193 280.4);

Tailwind

colors: {
  custom: {
    50: '#7e61c0',
    500: '#3921a4',
    950: '#000000',
  },
}

SCSS

$custom: #3921a4;
$custom-light: #7e61c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3921a4",
  "rgb": {
    "r": 57,
    "g": 33,
    "b": 164
  },
  "hsl": {
    "h": 250.992,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.3806,
    "c": 0.19324,
    "h": 280.4
  },
  "luminance": 0.04638
}

Semantic roles & 50–950 ramp

primary

#3921A4

secondary

#B1C45D

accent

#E93ECA

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #3921A4

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

Preview Lab → · Contrast checker → · Palette generator →