#3F3FC2#3F3FC2

#3F3FC2 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.7% C 0.198 H 275.2°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FC2
RGB	rgb(63, 63, 194)
HSL	hsl(240, 52%, 50%)
HSV	hsv(240, 68%, 76%)
CMYK	cmyk(67.5%, 67.5%, 0%, 23.9%)
CIE-LAB	lab(35.01, 41.38, -68.33)
CIE-LCH	lch(35.01, 79.89, 301.20°)
OKLab	oklab(45.7% 0.018 -0.1973)
OKLCH	oklch(45.7% 0.198 275.2)
XYZ	xyz(13.5618, 8.5056, 51.9555)
Luminance	0.0851 (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

#3F3FC2 #C2C23F

analogous

#3F80C2 #3F3FC2 #803FC2

triadic

#3F3FC2 #C23F3F #3FC23F

tetradic

#3F3FC2 #C23F80 #C2C23F #3FC280

square

#3F3FC2 #C23F80 #C2C23F #3FC280

split-complementary

#3F3FC2 #C2803F #80C23F

monochromatic

#202066 #2F2F95 #3F3FC2 #6D6DD1 #9C9CE0

Accessibility & contrast

On white

7.77

#3F3FC2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3F3FC2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FC2

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FC2	#FFFFFF	#000000	##FFFFFF
##3F3FC2	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C6

Deuteranopia (green-blind)

#004CC0

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3f3fc2;
/* rgb */ color: rgb(63, 63, 194);
/* oklch */ color: oklch(45.7% 0.198 275.2);

Tailwind

colors: {
  custom: {
    50: '#8575d6',
    500: '#3f3fc2',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fc2;
$custom-light: #8575d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fc2",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 194
  },
  "hsl": {
    "h": 240,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.457,
    "c": 0.19814,
    "h": 275.2
  },
  "luminance": 0.08507
}

Semantic roles & 50–950 ramp

primary

#3F3FC2

secondary

#CCCC91

accent

#DB4DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3FC2

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

Preview Lab → · Contrast checker → · Palette generator →