#3F27B0#3F27B0

#3F27B0 is a dark, highly saturated violet. Relative luminance 0.056; OKLCH L 40.5% C 0.201 H 280.6°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F27B0
RGB	rgb(63, 39, 176)
HSL	hsl(251, 64%, 42%)
HSV	hsv(251, 78%, 69%)
CMYK	cmyk(64.2%, 77.8%, 0%, 31%)
CIE-LAB	lab(28.49, 48.98, -68.41)
CIE-LCH	lch(28.49, 84.14, 305.60°)
OKLab	oklab(40.53% 0.0368 -0.1974)
OKLCH	oklch(40.53% 0.201 280.6)
XYZ	xyz(10.6094, 5.6416, 41.5957)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F27B0 #98B027

analogous

#2754B0 #3F27B0 #8427B0

triadic

#3F27B0 #B03F27 #27B03F

tetradic

#3F27B0 #B02754 #98B027 #27B084

square

#3F27B0 #B02754 #98B027 #27B084

split-complementary

#3F27B0 #B08427 #54B027

monochromatic

#1B114C #2D1C7E #3F27B0 #5A40D5 #8572E0

Accessibility & contrast

On white

9.87

#3F27B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3F27B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F27B0

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F27B0	#FFFFFF	#000000	##FFFFFF
##3F27B0	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3f27b0;
/* rgb */ color: rgb(63, 39, 176);
/* oklch */ color: oklch(40.5% 0.201 280.6);

Tailwind

colors: {
  custom: {
    50: '#8365c9',
    500: '#3f27b0',
    950: '#000000',
  },
}

SCSS

$custom: #3f27b0;
$custom-light: #8365c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f27b0",
  "rgb": {
    "r": 63,
    "g": 39,
    "b": 176
  },
  "hsl": {
    "h": 250.511,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4053,
    "c": 0.20086,
    "h": 280.6
  },
  "luminance": 0.05642
}

Semantic roles & 50–950 ramp

primary

#3F27B0

secondary

#B7C76C

accent

#E741CA

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F27B0

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

Preview Lab → · Contrast checker → · Palette generator →