#3F3FC9#3F3FC9

#3F3FC9 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.4% C 0.207 H 274.7°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FC9
RGB	rgb(63, 63, 201)
HSL	hsl(240, 56%, 52%)
HSV	hsv(240, 69%, 79%)
CMYK	cmyk(68.7%, 68.7%, 0%, 21.2%)
CIE-LAB	lab(35.65, 43.71, -71.37)
CIE-LCH	lch(35.65, 83.70, 301.49°)
OKLab	oklab(46.35% 0.0171 -0.2062)
OKLCH	oklch(46.35% 0.207 274.7)
XYZ	xyz(14.3665, 8.8275, 56.1938)
Luminance	0.0883 (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

#3F3FC9 #C9C93F

analogous

#3F84C9 #3F3FC9 #843FC9

triadic

#3F3FC9 #C93F3F #3FC93F

tetradic

#3F3FC9 #C93F84 #C9C93F #3FC984

square

#3F3FC9 #C93F84 #C9C93F #3FC984

split-complementary

#3F3FC9 #C9843F #84C93F

monochromatic

#1F1F6F #2D2D9E #3F3FC9 #6F6FD6 #9F9FE4

Accessibility & contrast

On white

7.59

#3F3FC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3F3FC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FC9

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FC9	#FFFFFF	#000000	##FFFFFF
##3F3FC9	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACD

Deuteranopia (green-blind)

#004DC6

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f3fc9;
/* rgb */ color: rgb(63, 63, 201);
/* oklch */ color: oklch(46.4% 0.207 274.7);

Tailwind

colors: {
  custom: {
    50: '#8675db',
    500: '#3f3fc9',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fc9;
$custom-light: #8675db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fc9",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 201
  },
  "hsl": {
    "h": 240,
    "s": 56.098,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46352,
    "c": 0.20693,
    "h": 274.7
  },
  "luminance": 0.08829
}

Semantic roles & 50–950 ramp

primary

#3F3FC9

secondary

#D0D094

accent

#DF48DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F3FC9

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

Preview Lab → · Contrast checker → · Palette generator →