#3F3DAD#3F3DAD

#3F3DAD is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.173 H 277.2°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DAD
RGB	rgb(63, 61, 173)
HSL	hsl(241, 48%, 46%)
HSV	hsv(241, 65%, 68%)
CMYK	cmyk(63.6%, 64.7%, 0%, 32.2%)
CIE-LAB	lab(32.72, 35.54, -59.67)
CIE-LCH	lch(32.72, 69.45, 300.78°)
OKLab	oklab(43.47% 0.0217 -0.1719)
OKLCH	oklch(43.47% 0.173 277.2)
XYZ	xyz(11.2590, 7.4105, 40.3641)
Luminance	0.0741 (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

#3F3DAD #ABAD3D

analogous

#3D73AD #3F3DAD #773DAD

triadic

#3F3DAD #AD3F3D #3DAD3F

tetradic

#3F3DAD #AD3D73 #ABAD3D #3DAD77

square

#3F3DAD #AD3D73 #ABAD3D #3DAD77

split-complementary

#3F3DAD #AD773D #73AD3D

monochromatic

#1E1D53 #2F2D80 #3F3DAD #6260C7 #8F8DD7

Accessibility & contrast

On white

8.46

#3F3DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3F3DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DAD

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DAD	#FFFFFF	#000000	##FFFFFF
##3F3DAD	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B1

Deuteranopia (green-blind)

#0048AB

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f3dad;
/* rgb */ color: rgb(63, 61, 173);
/* oklch */ color: oklch(43.5% 0.173 277.2);

Tailwind

colors: {
  custom: {
    50: '#8173c6',
    500: '#3f3dad',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dad;
$custom-light: #8173c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dad",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 173
  },
  "hsl": {
    "h": 241.071,
    "s": 47.863,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43471,
    "c": 0.1733,
    "h": 277.2
  },
  "luminance": 0.07411
}

Semantic roles & 50–950 ramp

primary

#3F3DAD

secondary

#C1C284

accent

#D750D5

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3F3DAD

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

Preview Lab → · Contrast checker → · Palette generator →