#3F3FD5#3F3FD5

#3F3FD5 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.5% C 0.222 H 274.0°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FD5
RGB	rgb(63, 63, 213)
HSL	hsl(240, 64%, 54%)
HSV	hsv(240, 70%, 84%)
CMYK	cmyk(70.4%, 70.4%, 0%, 16.5%)
CIE-LAB	lab(36.77, 47.66, -76.48)
CIE-LCH	lch(36.77, 90.12, 301.93°)
OKLab	oklab(47.5% 0.0154 -0.2211)
OKLCH	oklch(47.5% 0.222 274)
XYZ	xyz(15.8336, 9.4143, 63.9206)
Luminance	0.0942 (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

#3F3FD5 #D5D53F

analogous

#3F8AD5 #3F3FD5 #8A3FD5

triadic

#3F3FD5 #D53F3F #3FD53F

tetradic

#3F3FD5 #D53F8A #D5D53F #3FD58A

square

#3F3FD5 #D53F8A #D5D53F #3FD58A

split-complementary

#3F3FD5 #D58A3F #8AD53F

monochromatic

#1C1C7E #2727B0 #3F3FD5 #7171E0 #A3A3EB

Accessibility & contrast

On white

7.28

#3F3FD5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3F3FD5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FD5

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FD5	#FFFFFF	#000000	##FFFFFF
##3F3FD5	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED9

Deuteranopia (green-blind)

#004FD2

Tritanopia (blue-blind)

#006986

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f3fd5;
/* rgb */ color: rgb(63, 63, 213);
/* oklch */ color: oklch(47.5% 0.222 274.0);

Tailwind

colors: {
  custom: {
    50: '#8975e3',
    500: '#3f3fd5',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fd5;
$custom-light: #8975e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fd5",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 213
  },
  "hsl": {
    "h": 240,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.47497,
    "c": 0.22168,
    "h": 274
  },
  "luminance": 0.09416
}

Semantic roles & 50–950 ramp

primary

#3F3FD5

secondary

#D8D898

accent

#E741E7

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3F3FD5

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

Preview Lab → · Contrast checker → · Palette generator →