#3F2FA9#3F2FA9

#3F2FA9 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.9% C 0.184 H 280.4°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FA9
RGB	rgb(63, 47, 169)
HSL	hsl(248, 56%, 42%)
HSV	hsv(248, 72%, 66%)
CMYK	cmyk(62.7%, 72.2%, 0%, 33.7%)
CIE-LAB	lab(29.30, 42.57, -62.89)
CIE-LCH	lch(29.30, 75.94, 304.09°)
OKLab	oklab(40.89% 0.0332 -0.1814)
OKLCH	oklch(40.89% 0.184 280.4)
XYZ	xyz(10.2256, 5.9536, 38.1387)
Luminance	0.0595 (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

#3F2FA9 #99A92F

analogous

#2F5CA9 #3F2FA9 #7C2FA9

triadic

#3F2FA9 #A93F2F #2FA93F

tetradic

#3F2FA9 #A92F5C #99A92F #2FA97C

square

#3F2FA9 #A92F5C #99A92F #2FA97C

split-complementary

#3F2FA9 #A97C2F #5CA92F

monochromatic

#1B1449 #2D2279 #3F2FA9 #5A49CC #8579DA

Accessibility & contrast

On white

9.59

#3F2FA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3F2FA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FA9

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FA9	#FFFFFF	#000000	##FFFFFF
##3F2FA9	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AD

Deuteranopia (green-blind)

#0040A7

Tritanopia (blue-blind)

#005069

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f2fa9;
/* rgb */ color: rgb(63, 47, 169);
/* oklch */ color: oklch(40.9% 0.184 280.4);

Tailwind

colors: {
  custom: {
    50: '#8169c4',
    500: '#3f2fa9',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fa9;
$custom-light: #8169c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fa9",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 169
  },
  "hsl": {
    "h": 247.869,
    "s": 56.481,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40889,
    "c": 0.1844,
    "h": 280.4
  },
  "luminance": 0.05954
}

Semantic roles & 50–950 ramp

primary

#3F2FA9

secondary

#B7C272

accent

#E048CC

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3F2FA9

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

Preview Lab → · Contrast checker → · Palette generator →