#3F3DC0#3F3DC0

#3F3DC0 is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.198 H 275.7°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DC0
RGB	rgb(63, 61, 192)
HSL	hsl(241, 52%, 50%)
HSV	hsv(241, 68%, 75%)
CMYK	cmyk(67.2%, 68.2%, 0%, 24.7%)
CIE-LAB	lab(34.39, 41.91, -68.18)
CIE-LCH	lch(34.39, 80.03, 301.58°)
OKLab	oklab(45.2% 0.0196 -0.1969)
OKLCH	oklch(45.2% 0.198 275.7)
XYZ	xyz(13.2299, 8.1988, 50.7443)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.78

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3DC0 #BEC03D

analogous

#3D7DC0 #3F3DC0 #813DC0

triadic

#3F3DC0 #C03F3D #3DC03F

tetradic

#3F3DC0 #C03D7D #BEC03D #3DC081

square

#3F3DC0 #C03D7D #BEC03D #3DC081

split-complementary

#3F3DC0 #C0813D #7DC03D

monochromatic

#211F63 #302E92 #3F3DC0 #6C6AD0 #9A99DF

Accessibility & contrast

On white

7.95

#3F3DC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3F3DC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DC0

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DC0	#FFFFFF	#000000	##FFFFFF
##3F3DC0	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C4

Deuteranopia (green-blind)

#004BBE

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f3dc0;
/* rgb */ color: rgb(63, 61, 192);
/* oklch */ color: oklch(45.2% 0.198 275.7);

Tailwind

colors: {
  custom: {
    50: '#8573d4',
    500: '#3f3dc0',
    950: '#000000',
  },
}

SCSS

$custom: #3f3dc0;
$custom-light: #8573d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3dc0",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 192
  },
  "hsl": {
    "h": 240.916,
    "s": 51.779,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45196,
    "c": 0.19784,
    "h": 275.7
  },
  "luminance": 0.082
}

Semantic roles & 50–950 ramp

primary

#3F3DC0

secondary

#C9CA8E

accent

#DB4DD9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3DC0

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

Preview Lab → · Contrast checker → · Palette generator →