#3F21AA#3F21AA

#3F21AA is a dark, vivid violet. Relative luminance 0.050; OKLCH L 39.2% C 0.199 H 282.2°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F21AA
RGB	rgb(63, 33, 170)
HSL	hsl(253, 67%, 40%)
HSV	hsv(253, 81%, 67%)
CMYK	cmyk(62.9%, 80.6%, 0%, 33.3%)
CIE-LAB	lab(26.87, 50.07, -67.49)
CIE-LCH	lch(26.87, 84.04, 306.57°)
OKLab	oklab(39.21% 0.042 -0.1947)
OKLCH	oklch(39.21% 0.199 282.2)
XYZ	xyz(9.8472, 5.0460, 38.4775)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F21AA #8CAA21

analogous

#2147AA #3F21AA #8421AA

triadic

#3F21AA #AA3F21 #21AA3F

tetradic

#3F21AA #AA2147 #8CAA21 #21AA84

square

#3F21AA #AA2147 #8CAA21 #21AA84

split-complementary

#3F21AA #AA8421 #47AA21

monochromatic

#190D43 #2C1777 #3F21AA #5531D7 #8064E1

Accessibility & contrast

On white

10.45

#3F21AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#3F21AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F21AA

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F21AA	#FFFFFF	#000000	##FFFFFF
##3F21AA	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AE

Deuteranopia (green-blind)

#003BA8

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3f21aa;
/* rgb */ color: rgb(63, 33, 170);
/* oklch */ color: oklch(39.2% 0.199 282.2);

Tailwind

colors: {
  custom: {
    50: '#8261c5',
    500: '#3f21aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f21aa;
$custom-light: #8261c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f21aa",
  "rgb": {
    "r": 63,
    "g": 33,
    "b": 170
  },
  "hsl": {
    "h": 253.139,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.39212,
    "c": 0.19918,
    "h": 282.2
  },
  "luminance": 0.05047
}

Semantic roles & 50–950 ramp

primary

#3F21AA

secondary

#B0C661

accent

#EA3DC4

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3F21AA

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

Preview Lab → · Contrast checker → · Palette generator →