#3F2FB7#3F2FB7

#3F2FB7 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.3% C 0.202 H 278.6°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FB7
RGB	rgb(63, 47, 183)
HSL	hsl(247, 59%, 45%)
HSV	hsv(247, 74%, 72%)
CMYK	cmyk(65.6%, 74.3%, 0%, 28.2%)
CIE-LAB	lab(30.66, 46.98, -69.01)
CIE-LCH	lch(30.66, 83.48, 304.24°)
OKLab	oklab(42.27% 0.0303 -0.1993)
OKLCH	oklch(42.27% 0.202 278.6)
XYZ	xyz(11.6109, 6.5077, 45.4348)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Indigo Blue

#3A18B1

ΔE00 4.44

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2FB7 #A7B72F

analogous

#2F63B7 #3F2FB7 #832FB7

triadic

#3F2FB7 #B73F2F #2FB73F

tetradic

#3F2FB7 #B72F63 #A7B72F #2FB783

square

#3F2FB7 #B72F63 #A7B72F #2FB783

split-complementary

#3F2FB7 #B7832F #63B72F

monochromatic

#1D1656 #2E2286 #3F2FB7 #6051D2 #8D82DF

Accessibility & contrast

On white

9.12

#3F2FB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3F2FB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FB7

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FB7	#FFFFFF	#000000	##FFFFFF
##3F2FB7	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBB

Deuteranopia (green-blind)

#0043B5

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3f2fb7;
/* rgb */ color: rgb(63, 47, 183);
/* oklch */ color: oklch(42.3% 0.202 278.6);

Tailwind

colors: {
  custom: {
    50: '#846ace',
    500: '#3f2fb7',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fb7;
$custom-light: #846ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fb7",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 183
  },
  "hsl": {
    "h": 247.059,
    "s": 59.13,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42268,
    "c": 0.20155,
    "h": 278.6
  },
  "luminance": 0.06509
}

Semantic roles & 50–950 ramp

primary

#3F2FB7

secondary

#BFC87A

accent

#E245D0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3F2FB7

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

Preview Lab → · Contrast checker → · Palette generator →