#3F3EB0#3F3EB0

#3F3EB0 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.9% C 0.176 H 276.7°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F3EB0
RGB	rgb(63, 62, 176)
HSL	hsl(241, 48%, 47%)
HSV	hsv(241, 65%, 69%)
CMYK	cmyk(64.2%, 64.8%, 0%, 31%)
CIE-LAB	lab(33.21, 35.94, -60.66)
CIE-LCH	lch(33.21, 70.50, 300.65°)
OKLab	oklab(43.91% 0.0206 -0.1748)
OKLCH	oklch(43.91% 0.176 276.7)
XYZ	xyz(11.6064, 7.6356, 41.9281)
Luminance	0.0764 (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

#3F3EB0 #AFB03E

analogous

#3E76B0 #3F3EB0 #783EB0

triadic

#3F3EB0 #B03F3E #3EB03F

tetradic

#3F3EB0 #B03E76 #AFB03E #3EB078

square

#3F3EB0 #B03E76 #AFB03E #3EB078

split-complementary

#3F3EB0 #B0783E #76B03E

monochromatic

#1F1E55 #2F2E83 #3F3EB0 #6463C8 #9190D8

Accessibility & contrast

On white

8.31

#3F3EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3F3EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3EB0

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3EB0	#FFFFFF	#000000	##FFFFFF
##3F3EB0	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B4

Deuteranopia (green-blind)

#0049AE

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f3eb0;
/* rgb */ color: rgb(63, 62, 176);
/* oklch */ color: oklch(43.9% 0.176 276.7);

Tailwind

colors: {
  custom: {
    50: '#8174c9',
    500: '#3f3eb0',
    950: '#000000',
  },
}

SCSS

$custom: #3f3eb0;
$custom-light: #8174c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3eb0",
  "rgb": {
    "r": 63,
    "g": 62,
    "b": 176
  },
  "hsl": {
    "h": 240.526,
    "s": 47.899,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43906,
    "c": 0.17605,
    "h": 276.7
  },
  "luminance": 0.07637
}

Semantic roles & 50–950 ramp

primary

#3F3EB0

secondary

#C3C387

accent

#D750D6

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3F3EB0

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

Preview Lab → · Contrast checker → · Palette generator →