#3F3699#3F3699

#3F3699 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.155 H 281.0°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F3699
RGB	rgb(63, 54, 153)
HSL	hsl(245, 48%, 41%)
HSV	hsv(245, 65%, 60%)
CMYK	cmyk(58.8%, 64.7%, 0%, 40%)
CIE-LAB	lab(29.40, 33.20, -53.03)
CIE-LCH	lch(29.40, 62.56, 302.05°)
OKLab	oklab(40.52% 0.0297 -0.1525)
OKLCH	oklch(40.52% 0.155 281)
XYZ	xyz(9.1170, 5.9944, 30.8074)
Luminance	0.0600 (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

#3F3699 #909936

analogous

#365E99 #3F3699 #713699

triadic

#3F3699 #993F36 #36993F

tetradic

#3F3699 #99365E #909936 #369971

square

#3F3699 #99365E #909936 #369971

split-complementary

#3F3699 #997136 #5E9936

monochromatic

#1A163F #2C266C #3F3699 #574CC0 #817AD0

Accessibility & contrast

On white

9.55

#3F3699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3F3699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3699

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3699	#FFFFFF	#000000	##FFFFFF
##3F3699	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499C

Deuteranopia (green-blind)

#004297

Tritanopia (blue-blind)

#094F62

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f3699;
/* rgb */ color: rgb(63, 54, 153);
/* oklch */ color: oklch(40.5% 0.155 281.0);

Tailwind

colors: {
  custom: {
    50: '#7e6eb8',
    500: '#3f3699',
    950: '#000000',
  },
}

SCSS

$custom: #3f3699;
$custom-light: #7e6eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3699",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 153
  },
  "hsl": {
    "h": 245.455,
    "s": 47.826,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40524,
    "c": 0.15533,
    "h": 281
  },
  "luminance": 0.05995
}

Semantic roles & 50–950 ramp

primary

#3F3699

secondary

#B2B972

accent

#D750CB

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #3F3699

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

Preview Lab → · Contrast checker → · Palette generator →