#3F3683#3F3683

#3F3683 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.125 H 284.2°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F3683
RGB	rgb(63, 54, 131)
HSL	hsl(247, 42%, 36%)
HSV	hsv(247, 59%, 51%)
CMYK	cmyk(51.9%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(27.66, 25.91, -42.26)
CIE-LCH	lch(27.66, 49.57, 301.51°)
OKLab	oklab(38.71% 0.0307 -0.1208)
OKLCH	oklch(38.71% 0.125 284.2)
XYZ	xyz(7.4646, 5.3334, 22.1045)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3683 #7A8336

analogous

#365483 #3F3683 #663683

triadic

#3F3683 #833F36 #36833F

tetradic

#3F3683 #833654 #7A8336 #368366

square

#3F3683 #833654 #7A8336 #368366

split-complementary

#3F3683 #836636 #548336

monochromatic

#15122C #2A2458 #3F3683 #5448AE #7970C4

Accessibility & contrast

On white

10.16

#3F3683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3F3683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3683

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3683	#FFFFFF	#000000	##FFFFFF
##3F3683	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004486

Deuteranopia (green-blind)

#003F81

Tritanopia (blue-blind)

#264857

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f3683;
/* rgb */ color: rgb(63, 54, 131);
/* oklch */ color: oklch(38.7% 0.125 284.2);

Tailwind

colors: {
  custom: {
    50: '#7a6da8',
    500: '#3f3683',
    950: '#000000',
  },
}

SCSS

$custom: #3f3683;
$custom-light: #7a6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3683",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 247.013,
    "s": 41.622,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38705,
    "c": 0.12465,
    "h": 284.2
  },
  "luminance": 0.05334
}

Semantic roles & 50–950 ramp

primary

#3F3683

secondary

#A4AC68

accent

#D156C3

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A070F

muted

#7C7A7F

Preview Lab

Preview with #3F3683

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

Preview Lab → · Contrast checker → · Palette generator →