#3F2FA8#3F2FA8

#3F2FA8 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.8% C 0.183 H 280.5°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FA8
RGB	rgb(63, 47, 168)
HSL	hsl(248, 56%, 42%)
HSV	hsv(248, 72%, 66%)
CMYK	cmyk(62.5%, 72%, 0%, 34.1%)
CIE-LAB	lab(29.20, 42.25, -62.44)
CIE-LCH	lch(29.20, 75.39, 304.08°)
OKLab	oklab(40.79% 0.0334 -0.1801)
OKLCH	oklch(40.79% 0.183 280.5)
XYZ	xyz(10.1321, 5.9162, 37.6462)
Luminance	0.0592 (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

#3F2FA8 #98A82F

analogous

#2F5CA8 #3F2FA8 #7C2FA8

triadic

#3F2FA8 #A83F2F #2FA83F

tetradic

#3F2FA8 #A82F5C #98A82F #2FA87C

square

#3F2FA8 #A82F5C #98A82F #2FA87C

split-complementary

#3F2FA8 #A87C2F #5CA82F

monochromatic

#1B1448 #2D2278 #3F2FA8 #5A48CC #8578D9

Accessibility & contrast

On white

9.62

#3F2FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3F2FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FA8

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FA8	#FFFFFF	#000000	##FFFFFF
##3F2FA8	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AC

Deuteranopia (green-blind)

#0040A6

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f2fa8;
/* rgb */ color: rgb(63, 47, 168);
/* oklch */ color: oklch(40.8% 0.183 280.5);

Tailwind

colors: {
  custom: {
    50: '#8169c3',
    500: '#3f2fa8',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fa8;
$custom-light: #8169c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fa8",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 168
  },
  "hsl": {
    "h": 247.934,
    "s": 56.279,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40792,
    "c": 0.18315,
    "h": 280.5
  },
  "luminance": 0.05917
}

Semantic roles & 50–950 ramp

primary

#3F2FA8

secondary

#B7C171

accent

#E048CC

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F2FA8

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

Preview Lab → · Contrast checker → · Palette generator →