#3F1DBB#3F1DBB

#3F1DBB is a dark, highly saturated violet. Relative luminance 0.055; OKLCH L 40.7% C 0.221 H 280.0°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#3F1DBB
RGB	rgb(63, 29, 187)
HSL	hsl(253, 73%, 42%)
HSV	hsv(253, 84%, 73%)
CMYK	cmyk(66.3%, 84.5%, 0%, 26.7%)
CIE-LAB	lab(28.17, 56.58, -75.49)
CIE-LCH	lch(28.17, 94.34, 306.85°)
OKLab	oklab(40.67% 0.0383 -0.2179)
OKLCH	oklch(40.67% 0.221 280)
XYZ	xyz(11.4560, 5.5224, 47.4663)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F1DBB #99BB1D

analogous

#1D4ABB #3F1DBB #8E1DBB

triadic

#3F1DBB #BB3F1D #1DBB3F

tetradic

#3F1DBB #BB1D4A #99BB1D #1DBB8E

square

#3F1DBB #BB1D4A #99BB1D #1DBB8E

split-complementary

#3F1DBB #BB8E1D #4ABB1D

monochromatic

#1B0D51 #2D1586 #3F1DBB #5A35E0 #856AE8

Accessibility & contrast

On white

9.98

#3F1DBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#3F1DBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F1DBB

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F1DBB	#FFFFFF	#000000	##FFFFFF
##3F1DBB	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048BF

Deuteranopia (green-blind)

#003CB8

Tritanopia (blue-blind)

#00506F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3f1dbb;
/* rgb */ color: rgb(63, 29, 187);
/* oklch */ color: oklch(40.7% 0.221 280.0);

Tailwind

colors: {
  custom: {
    50: '#8661d1',
    500: '#3f1dbb',
    950: '#000000',
  },
}

SCSS

$custom: #3f1dbb;
$custom-light: #8661d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f1dbb",
  "rgb": {
    "r": 63,
    "g": 29,
    "b": 187
  },
  "hsl": {
    "h": 252.911,
    "s": 73.148,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40665,
    "c": 0.22122,
    "h": 280
  },
  "luminance": 0.05523
}

Semantic roles & 50–950 ramp

primary

#3F1DBB

secondary

#B7CE66

accent

#F038C8

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0514

muted

#7E7A83

Preview Lab

Preview with #3F1DBB

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

Preview Lab → · Contrast checker → · Palette generator →