#3F2FA3#3F2FA3

#3F2FA3 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.3% C 0.177 H 281.2°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FA3
RGB	rgb(63, 47, 163)
HSL	hsl(248, 55%, 41%)
HSV	hsv(248, 71%, 64%)
CMYK	cmyk(61.3%, 71.2%, 0%, 36.1%)
CIE-LAB	lab(28.73, 40.66, -60.20)
CIE-LCH	lch(28.73, 72.64, 304.04°)
OKLab	oklab(40.31% 0.0344 -0.1735)
OKLCH	oklch(40.31% 0.177 281.2)
XYZ	xyz(9.6752, 5.7334, 35.2401)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2FA3 #93A32F

analogous

#2F59A3 #3F2FA3 #792FA3

triadic

#3F2FA3 #A33F2F #2FA33F

tetradic

#3F2FA3 #A32F59 #93A32F #2FA379

square

#3F2FA3 #A32F59 #93A32F #2FA379

split-complementary

#3F2FA3 #A3792F #59A32F

monochromatic

#1A1444 #2D2173 #3F2FA3 #5846CA #8375D7

Accessibility & contrast

On white

9.78

#3F2FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#3F2FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FA3

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FA3	#FFFFFF	#000000	##FFFFFF
##3F2FA3	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A6

Deuteranopia (green-blind)

#003FA1

Tritanopia (blue-blind)

#004E65

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f2fa3;
/* rgb */ color: rgb(63, 47, 163);
/* oklch */ color: oklch(40.3% 0.177 281.2);

Tailwind

colors: {
  custom: {
    50: '#8069bf',
    500: '#3f2fa3',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fa3;
$custom-light: #8069bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fa3",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 163
  },
  "hsl": {
    "h": 248.276,
    "s": 55.238,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40314,
    "c": 0.17687,
    "h": 281.2
  },
  "luminance": 0.05734
}

Semantic roles & 50–950 ramp

primary

#3F2FA3

secondary

#B4BF6F

accent

#DF49CA

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3F2FA3

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

Preview Lab → · Contrast checker → · Palette generator →