#3F31C6#3F31C6

#3F31C6 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 44.1% C 0.218 H 276.8°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#3F31C6
RGB	rgb(63, 49, 198)
HSL	hsl(246, 60%, 48%)
HSV	hsv(246, 75%, 78%)
CMYK	cmyk(68.2%, 75.3%, 0%, 22.4%)
CIE-LAB	lab(32.55, 50.58, -74.73)
CIE-LCH	lch(32.55, 90.24, 304.09°)
OKLab	oklab(44.05% 0.0259 -0.216)
OKLCH	oklch(44.05% 0.218 276.8)
XYZ	xyz(13.3379, 7.3294, 54.1269)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.39

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F31C6 #B8C631

analogous

#316DC6 #3F31C6 #8A31C6

triadic

#3F31C6 #C63F31 #31C63F

tetradic

#3F31C6 #C6316D #B8C631 #31C68A

square

#3F31C6 #C6316D #B8C631 #31C68A

split-complementary

#3F31C6 #C68A31 #6DC631

monochromatic

#201964 #2F2595 #3F31C6 #695DD7 #968EE3

Accessibility & contrast

On white

8.52

#3F31C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3F31C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F31C6

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F31C6	#FFFFFF	#000000	##FFFFFF
##3F31C6	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CA

Deuteranopia (green-blind)

#0046C3

Tritanopia (blue-blind)

#005C7A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f31c6;
/* rgb */ color: rgb(63, 49, 198);
/* oklch */ color: oklch(44.1% 0.218 276.8);

Tailwind

colors: {
  custom: {
    50: '#876cd9',
    500: '#3f31c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f31c6;
$custom-light: #876cd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f31c6",
  "rgb": {
    "r": 63,
    "g": 49,
    "b": 198
  },
  "hsl": {
    "h": 245.638,
    "s": 60.324,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44052,
    "c": 0.21751,
    "h": 276.8
  },
  "luminance": 0.07331
}

Semantic roles & 50–950 ramp

primary

#3F31C6

secondary

#C7CE85

accent

#E344D5

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F31C6

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

Preview Lab → · Contrast checker → · Palette generator →