#3F21C2#3F21C2

#3F21C2 is a dark, highly saturated violet. Relative luminance 0.060; OKLCH L 41.8% C 0.226 H 278.7°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F21C2
RGB	rgb(63, 33, 194)
HSL	hsl(251, 71%, 45%)
HSV	hsv(251, 83%, 76%)
CMYK	cmyk(67.5%, 83%, 0%, 23.9%)
CIE-LAB	lab(29.51, 56.94, -77.41)
CIE-LCH	lch(29.51, 96.09, 306.34°)
OKLab	oklab(41.81% 0.0344 -0.2235)
OKLCH	oklch(41.81% 0.226 278.7)
XYZ	xyz(12.3282, 6.0385, 51.5443)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F21C2 #A4C221

analogous

#2154C2 #3F21C2 #9021C2

triadic

#3F21C2 #C23F21 #21C23F

tetradic

#3F21C2 #C22154 #A4C221 #21C290

square

#3F21C2 #C22154 #A4C221 #21C290

split-complementary

#3F21C2 #C29021 #54C221

monochromatic

#1D0F59 #2E188E #3F21C2 #5F41DF #8B76E8

Accessibility & contrast

On white

9.51

#3F21C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3F21C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F21C2

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F21C2	#FFFFFF	#000000	##FFFFFF
##3F21C2	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BC6

Deuteranopia (green-blind)

#003FBF

Tritanopia (blue-blind)

#005574

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f21c2;
/* rgb */ color: rgb(63, 33, 194);
/* oklch */ color: oklch(41.8% 0.226 278.7);

Tailwind

colors: {
  custom: {
    50: '#8763d6',
    500: '#3f21c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f21c2;
$custom-light: #8763d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f21c2",
  "rgb": {
    "r": 63,
    "g": 33,
    "b": 194
  },
  "hsl": {
    "h": 251.18,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41812,
    "c": 0.22617,
    "h": 278.7
  },
  "luminance": 0.0604
}

Semantic roles & 50–950 ramp

primary

#3F21C2

secondary

#BDCF70

accent

#EE3ACC

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0615

muted

#7E7A83

Preview Lab

Preview with #3F21C2

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

Preview Lab → · Contrast checker → · Palette generator →