#3F3FC4#3F3FC4

#3F3FC4 is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 45.9% C 0.201 H 275.1°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FC4
RGB	rgb(63, 63, 196)
HSL	hsl(240, 53%, 51%)
HSV	hsv(240, 68%, 77%)
CMYK	cmyk(67.9%, 67.9%, 0%, 23.1%)
CIE-LAB	lab(35.19, 42.05, -69.20)
CIE-LCH	lch(35.19, 80.98, 301.28°)
OKLab	oklab(45.89% 0.0177 -0.1999)
OKLCH	oklch(45.89% 0.201 275.1)
XYZ	xyz(13.7879, 8.5960, 53.1464)
Luminance	0.0860 (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

#3F3FC4 #C4C43F

analogous

#3F81C4 #3F3FC4 #813FC4

triadic

#3F3FC4 #C43F3F #3FC43F

tetradic

#3F3FC4 #C43F81 #C4C43F #3FC481

square

#3F3FC4 #C43F81 #C4C43F #3FC481

split-complementary

#3F3FC4 #C4813F #81C43F

monochromatic

#202068 #2E2E97 #3F3FC4 #6E6ED2 #9D9DE1

Accessibility & contrast

On white

7.72

#3F3FC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3F3FC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FC4

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FC4	#FFFFFF	#000000	##FFFFFF
##3F3FC4	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C8

Deuteranopia (green-blind)

#004DC2

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f3fc4;
/* rgb */ color: rgb(63, 63, 196);
/* oklch */ color: oklch(45.9% 0.201 275.1);

Tailwind

colors: {
  custom: {
    50: '#8575d7',
    500: '#3f3fc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fc4;
$custom-light: #8575d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fc4",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 196
  },
  "hsl": {
    "h": 240,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45885,
    "c": 0.20066,
    "h": 275.1
  },
  "luminance": 0.08597
}

Semantic roles & 50–950 ramp

primary

#3F3FC4

secondary

#CDCD92

accent

#DC4BDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3F3FC4

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

Preview Lab → · Contrast checker → · Palette generator →