#3F31C5#3F31C5

#3F31C5 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 44.0% C 0.216 H 276.9°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F31C5
RGB	rgb(63, 49, 197)
HSL	hsl(246, 60%, 48%)
HSV	hsv(246, 75%, 77%)
CMYK	cmyk(68%, 75.1%, 0%, 22.7%)
CIE-LAB	lab(32.44, 50.27, -74.32)
CIE-LCH	lch(32.44, 89.72, 304.08°)
OKLab	oklab(43.95% 0.0261 -0.2147)
OKLCH	oklch(43.95% 0.216 276.9)
XYZ	xyz(13.2230, 7.2834, 53.5215)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.45

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F31C5 #B7C531

analogous

#316DC5 #3F31C5 #8931C5

triadic

#3F31C5 #C53F31 #31C53F

tetradic

#3F31C5 #C5316D #B7C531 #31C589

square

#3F31C5 #C5316D #B7C531 #31C589

split-complementary

#3F31C5 #C58931 #6DC531

monochromatic

#201963 #2F2594 #3F31C5 #685DD7 #968EE3

Accessibility & contrast

On white

8.55

#3F31C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3F31C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F31C5

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F31C5	#FFFFFF	#000000	##FFFFFF
##3F31C5	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C9

Deuteranopia (green-blind)

#0046C2

Tritanopia (blue-blind)

#005C79

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f31c5;
/* rgb */ color: rgb(63, 49, 197);
/* oklch */ color: oklch(44.0% 0.216 276.9);

Tailwind

colors: {
  custom: {
    50: '#876cd8',
    500: '#3f31c5',
    950: '#000000',
  },
}

SCSS

$custom: #3f31c5;
$custom-light: #876cd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f31c5",
  "rgb": {
    "r": 63,
    "g": 49,
    "b": 197
  },
  "hsl": {
    "h": 245.676,
    "s": 60.163,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4395,
    "c": 0.21633,
    "h": 276.9
  },
  "luminance": 0.07285
}

Semantic roles & 50–950 ramp

primary

#3F31C5

secondary

#C6CD85

accent

#E344D4

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F31C5

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

Preview Lab → · Contrast checker → · Palette generator →