#3F2FA5#3F2FA5

#3F2FA5 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.5% C 0.179 H 280.9°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FA5
RGB	rgb(63, 47, 165)
HSL	hsl(248, 56%, 42%)
HSV	hsv(248, 72%, 65%)
CMYK	cmyk(61.8%, 71.5%, 0%, 35.3%)
CIE-LAB	lab(28.92, 41.30, -61.10)
CIE-LCH	lch(28.92, 73.74, 304.05°)
OKLab	oklab(40.5% 0.034 -0.1761)
OKLCH	oklch(40.5% 0.179 280.9)
XYZ	xyz(9.8558, 5.8057, 36.1913)
Luminance	0.0581 (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

#3F2FA5 #95A52F

analogous

#2F5AA5 #3F2FA5 #7A2FA5

triadic

#3F2FA5 #A53F2F #2FA53F

tetradic

#3F2FA5 #A52F5A #95A52F #2FA57A

square

#3F2FA5 #A52F5A #95A52F #2FA57A

split-complementary

#3F2FA5 #A57A2F #5AA52F

monochromatic

#1B1446 #2D2175 #3F2FA5 #5947CB #8476D8

Accessibility & contrast

On white

9.72

#3F2FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3F2FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FA5

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FA5	#FFFFFF	#000000	##FFFFFF
##3F2FA5	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A9

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#004F66

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3f2fa5;
/* rgb */ color: rgb(63, 47, 165);
/* oklch */ color: oklch(40.5% 0.179 280.9);

Tailwind

colors: {
  custom: {
    50: '#8069c1',
    500: '#3f2fa5',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fa5;
$custom-light: #8069c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fa5",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 165
  },
  "hsl": {
    "h": 248.136,
    "s": 55.66,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40504,
    "c": 0.17939,
    "h": 280.9
  },
  "luminance": 0.05806
}

Semantic roles & 50–950 ramp

primary

#3F2FA5

secondary

#B5C070

accent

#DF49CB

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3F2FA5

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

Preview Lab → · Contrast checker → · Palette generator →