#3F3EB7#3F3EB7

#3F3EB7 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.5% C 0.185 H 276.2°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F3EB7
RGB	rgb(63, 62, 183)
HSL	hsl(240, 49%, 48%)
HSV	hsv(240, 66%, 72%)
CMYK	cmyk(65.6%, 66.1%, 0%, 28.2%)
CIE-LAB	lab(33.82, 38.30, -63.82)
CIE-LCH	lch(33.82, 74.43, 300.97°)
OKLab	oklab(44.53% 0.0199 -0.1841)
OKLCH	oklch(44.53% 0.185 276.2)
XYZ	xyz(12.3170, 7.9199, 45.6702)
Luminance	0.0792 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3EB7 #B6B73E

analogous

#3E79B7 #3F3EB7 #7B3EB7

triadic

#3F3EB7 #B73F3E #3EB73F

tetradic

#3F3EB7 #B73E79 #B6B73E #3EB77B

square

#3F3EB7 #B73E79 #B6B73E #3EB77B

split-complementary

#3F3EB7 #B77B3E #79B73E

monochromatic

#201F5C #2F2F89 #3F3EB7 #6867CB #9594DB

Accessibility & contrast

On white

8.13

#3F3EB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3F3EB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3EB7

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3EB7	#FFFFFF	#000000	##FFFFFF
##3F3EB7	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BB

Deuteranopia (green-blind)

#004AB5

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3eb7;
/* rgb */ color: rgb(63, 62, 183);
/* oklch */ color: oklch(44.5% 0.185 276.2);

Tailwind

colors: {
  custom: {
    50: '#8374ce',
    500: '#3f3eb7',
    950: '#000000',
  },
}

SCSS

$custom: #3f3eb7;
$custom-light: #8374ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3eb7",
  "rgb": {
    "r": 63,
    "g": 62,
    "b": 183
  },
  "hsl": {
    "h": 240.496,
    "s": 49.388,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44532,
    "c": 0.18519,
    "h": 276.2
  },
  "luminance": 0.07921
}

Semantic roles & 50–950 ramp

primary

#3F3EB7

secondary

#C6C68A

accent

#D94FD8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3F3EB7

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

Preview Lab → · Contrast checker → · Palette generator →