#3F3FC5#3F3FC5

#3F3FC5 is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.0% C 0.202 H 275.0°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FC5
RGB	rgb(63, 63, 197)
HSL	hsl(240, 54%, 51%)
HSV	hsv(240, 68%, 77%)
CMYK	cmyk(68%, 68%, 0%, 22.7%)
CIE-LAB	lab(35.29, 42.38, -69.64)
CIE-LCH	lch(35.29, 81.52, 301.33°)
OKLab	oklab(45.98% 0.0176 -0.2011)
OKLCH	oklch(45.98% 0.202 275)
XYZ	xyz(13.9021, 8.6417, 53.7479)
Luminance	0.0864 (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

#3F3FC5 #C5C53F

analogous

#3F82C5 #3F3FC5 #823FC5

triadic

#3F3FC5 #C53F3F #3FC53F

tetradic

#3F3FC5 #C53F82 #C5C53F #3FC582

square

#3F3FC5 #C53F82 #C5C53F #3FC582

split-complementary

#3F3FC5 #C5823F #82C53F

monochromatic

#20206A #2E2E99 #3F3FC5 #6E6ED3 #9D9DE1

Accessibility & contrast

On white

7.70

#3F3FC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3F3FC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FC5

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FC5	#FFFFFF	#000000	##FFFFFF
##3F3FC5	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C9

Deuteranopia (green-blind)

#004DC2

Tritanopia (blue-blind)

#00637D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f3fc5;
/* rgb */ color: rgb(63, 63, 197);
/* oklch */ color: oklch(46.0% 0.202 275.0);

Tailwind

colors: {
  custom: {
    50: '#8575d8',
    500: '#3f3fc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fc5;
$custom-light: #8575d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fc5",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 197
  },
  "hsl": {
    "h": 240,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.45978,
    "c": 0.20192,
    "h": 275
  },
  "luminance": 0.08643
}

Semantic roles & 50–950 ramp

primary

#3F3FC5

secondary

#CECE92

accent

#DD4BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3F3FC5

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

Preview Lab → · Contrast checker → · Palette generator →