#3F3FCD#3F3FCD

#3F3FCD is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.7% C 0.212 H 274.5°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FCD
RGB	rgb(63, 63, 205)
HSL	hsl(240, 59%, 53%)
HSV	hsv(240, 69%, 80%)
CMYK	cmyk(69.3%, 69.3%, 0%, 19.6%)
CIE-LAB	lab(36.02, 45.04, -73.09)
CIE-LCH	lch(36.02, 85.85, 301.64°)
OKLab	oklab(46.73% 0.0166 -0.2112)
OKLCH	oklch(46.73% 0.212 274.5)
XYZ	xyz(14.8432, 9.0182, 58.7042)
Luminance	0.0902 (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

#3F3FCD #CDCD3F

analogous

#3F86CD #3F3FCD #863FCD

triadic

#3F3FCD #CD3F3F #3FCD3F

tetradic

#3F3FCD #CD3F86 #CDCD3F #3FCD86

square

#3F3FCD #CD3F86 #CDCD3F #3FCD86

split-complementary

#3F3FCD #CD863F #86CD3F

monochromatic

#1E1E74 #2B2BA4 #3F3FCD #7070DA #A0A0E6

Accessibility & contrast

On white

7.49

#3F3FCD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3F3FCD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FCD

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FCD	#FFFFFF	#000000	##FFFFFF
##3F3FCD	1.00	7.49	2.80	7.49
#FFFFFF	7.49	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD1

Deuteranopia (green-blind)

#004ECA

Tritanopia (blue-blind)

#006681

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f3fcd;
/* rgb */ color: rgb(63, 63, 205);
/* oklch */ color: oklch(46.7% 0.212 274.5);

Tailwind

colors: {
  custom: {
    50: '#8775dd',
    500: '#3f3fcd',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fcd;
$custom-light: #8775dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fcd",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 205
  },
  "hsl": {
    "h": 240,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.4673,
    "c": 0.21189,
    "h": 274.5
  },
  "luminance": 0.0902
}

Semantic roles & 50–950 ramp

primary

#3F3FCD

secondary

#D3D395

accent

#E246E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F3FCD

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

Preview Lab → · Contrast checker → · Palette generator →