#3F3FDB#3F3FDB

#3F3FDB is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 48.1% C 0.229 H 273.6°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FDB
RGB	rgb(63, 63, 219)
HSL	hsl(240, 68%, 55%)
HSV	hsv(240, 71%, 86%)
CMYK	cmyk(71.2%, 71.2%, 0%, 14.1%)
CIE-LAB	lab(37.34, 49.61, -78.99)
CIE-LCH	lch(37.34, 93.27, 302.13°)
OKLab	oklab(48.08% 0.0145 -0.2284)
OKLCH	oklch(48.08% 0.229 273.6)
XYZ	xyz(16.6093, 9.7246, 68.0058)
Luminance	0.0973 (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

#3F3FDB #DBDB3F

analogous

#3F8DDB #3F3FDB #8D3FDB

triadic

#3F3FDB #DB3F3F #3FDB3F

tetradic

#3F3FDB #DB3F8D #DBDB3F #3FDB8D

square

#3F3FDB #DB3F8D #DBDB3F #3FDB8D

split-complementary

#3F3FDB #DB8D3F #8DDB3F

monochromatic

#191986 #2323BA #3F3FDB #7373E5 #A6A6EE

Accessibility & contrast

On white

7.13

#3F3FDB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3F3FDB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FDB

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FDB	#FFFFFF	#000000	##FFFFFF
##3F3FDB	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FE0

Deuteranopia (green-blind)

#0050D8

Tritanopia (blue-blind)

#006B89

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f3fdb;
/* rgb */ color: rgb(63, 63, 219);
/* oklch */ color: oklch(48.1% 0.229 273.6);

Tailwind

colors: {
  custom: {
    50: '#8a76e7',
    500: '#3f3fdb',
    950: '#000000',
  },
}

SCSS

$custom: #3f3fdb;
$custom-light: #8a76e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3fdb",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 219
  },
  "hsl": {
    "h": 240,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.4808,
    "c": 0.22891,
    "h": 273.6
  },
  "luminance": 0.09726
}

Semantic roles & 50–950 ramp

primary

#3F3FDB

secondary

#DCDC9A

accent

#EB3DEB

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3F3FDB

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

Preview Lab → · Contrast checker → · Palette generator →