#3F3AAE#3F3AAE

#3F3AAE is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.178 H 277.7°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F3AAE
RGB	rgb(63, 58, 174)
HSL	hsl(243, 50%, 45%)
HSV	hsv(243, 67%, 68%)
CMYK	cmyk(63.8%, 66.7%, 0%, 31.8%)
CIE-LAB	lab(32.12, 37.72, -61.25)
CIE-LCH	lch(32.12, 71.94, 301.63°)
OKLab	oklab(43.06% 0.024 -0.1766)
OKLCH	oklch(43.06% 0.178 277.7)
XYZ	xyz(11.2005, 7.1380, 40.8237)
Luminance	0.0714 (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

#3F3AAE #A9AE3A

analogous

#3A6FAE #3F3AAE #793AAE

triadic

#3F3AAE #AE3F3A #3AAE3F

tetradic

#3F3AAE #AE3A6F #A9AE3A #3AAE79

square

#3F3AAE #AE3A6F #A9AE3A #3AAE79

split-complementary

#3F3AAE #AE793A #6FAE3A

monochromatic

#1E1B52 #2E2B80 #3F3AAE #615CC9 #8E8AD8

Accessibility & contrast

On white

8.65

#3F3AAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3F3AAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3AAE

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3AAE	#FFFFFF	#000000	##FFFFFF
##3F3AAE	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B2

Deuteranopia (green-blind)

#0047AC

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f3aae;
/* rgb */ color: rgb(63, 58, 174);
/* oklch */ color: oklch(43.1% 0.178 277.7);

Tailwind

colors: {
  custom: {
    50: '#8171c7',
    500: '#3f3aae',
    950: '#000000',
  },
}

SCSS

$custom: #3f3aae;
$custom-light: #8171c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3aae",
  "rgb": {
    "r": 63,
    "g": 58,
    "b": 174
  },
  "hsl": {
    "h": 242.586,
    "s": 50,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43058,
    "c": 0.17822,
    "h": 277.7
  },
  "luminance": 0.07139
}

Semantic roles & 50–950 ramp

primary

#3F3AAE

secondary

#C0C281

accent

#DA4ED4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3F3AAE

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

Preview Lab → · Contrast checker → · Palette generator →