#3F21CA#3F21CA

#3F21CA is a dark, highly saturated violet. Relative luminance 0.064; OKLCH L 42.7% C 0.235 H 277.8°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F21CA
RGB	rgb(63, 33, 202)
HSL	hsl(251, 72%, 46%)
HSV	hsv(251, 84%, 79%)
CMYK	cmyk(68.8%, 83.7%, 0%, 20.8%)
CIE-LAB	lab(30.42, 59.18, -80.59)
CIE-LCH	lch(30.42, 99.99, 306.29°)
OKLab	oklab(42.7% 0.0318 -0.2328)
OKLCH	oklch(42.7% 0.235 277.8)
XYZ	xyz(13.2510, 6.4076, 56.4041)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F21CA #ACCA21

analogous

#2157CA #3F21CA #9321CA

triadic

#3F21CA #CA3F21 #21CA3F

tetradic

#3F21CA #CA2157 #ACCA21 #21CA93

square

#3F21CA #CA2157 #ACCA21 #21CA93

split-complementary

#3F21CA #CA9321 #57CA21

monochromatic

#1E1061 #2F1895 #3F21CA #6347E1 #8F7CEA

Accessibility & contrast

On white

9.20

#3F21CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#3F21CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F21CA

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F21CA	#FFFFFF	#000000	##FFFFFF
##3F21CA	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ECE

Deuteranopia (green-blind)

#0041C7

Tritanopia (blue-blind)

#005879

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3f21ca;
/* rgb */ color: rgb(63, 33, 202);
/* oklch */ color: oklch(42.7% 0.235 277.8);

Tailwind

colors: {
  custom: {
    50: '#8964dc',
    500: '#3f21ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f21ca;
$custom-light: #8964dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f21ca",
  "rgb": {
    "r": 63,
    "g": 33,
    "b": 202
  },
  "hsl": {
    "h": 250.651,
    "s": 71.915,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42699,
    "c": 0.23495,
    "h": 277.8
  },
  "luminance": 0.06409
}

Semantic roles & 50–950 ramp

primary

#3F21CA

secondary

#C1D275

accent

#EF39CE

background

#F9F6FD

surface

#F2EBFB

border

#CCC6D4

text

#0D0615

muted

#7E7A83

Preview Lab

Preview with #3F21CA

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

Preview Lab → · Contrast checker → · Palette generator →