#3F2FB6#3F2FB6

#3F2FB6 is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.2% C 0.200 H 278.8°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F2FB6
RGB	rgb(63, 47, 182)
HSL	hsl(247, 59%, 45%)
HSV	hsv(247, 74%, 71%)
CMYK	cmyk(65.4%, 74.2%, 0%, 28.6%)
CIE-LAB	lab(30.56, 46.66, -68.58)
CIE-LCH	lch(30.56, 82.95, 304.23°)
OKLab	oklab(42.17% 0.0305 -0.198)
OKLCH	oklch(42.17% 0.2 278.8)
XYZ	xyz(11.5072, 6.4662, 44.8886)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Indigo Blue

#3A18B1

ΔE00 4.41

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2FB6 #A6B62F

analogous

#2F63B6 #3F2FB6 #822FB6

triadic

#3F2FB6 #B63F2F #2FB63F

tetradic

#3F2FB6 #B62F63 #A6B62F #2FB682

square

#3F2FB6 #B62F63 #A6B62F #2FB682

split-complementary

#3F2FB6 #B6822F #63B62F

monochromatic

#1D1655 #2E2285 #3F2FB6 #6050D2 #8C81DE

Accessibility & contrast

On white

9.16

#3F2FB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3F2FB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2FB6

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2FB6	#FFFFFF	#000000	##FFFFFF
##3F2FB6	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBA

Deuteranopia (green-blind)

#0042B4

Tritanopia (blue-blind)

#005570

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3f2fb6;
/* rgb */ color: rgb(63, 47, 182);
/* oklch */ color: oklch(42.2% 0.200 278.8);

Tailwind

colors: {
  custom: {
    50: '#846acd',
    500: '#3f2fb6',
    950: '#000000',
  },
}

SCSS

$custom: #3f2fb6;
$custom-light: #846acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2fb6",
  "rgb": {
    "r": 63,
    "g": 47,
    "b": 182
  },
  "hsl": {
    "h": 247.111,
    "s": 58.952,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42168,
    "c": 0.20034,
    "h": 278.8
  },
  "luminance": 0.06467
}

Semantic roles & 50–950 ramp

primary

#3F2FB6

secondary

#BEC779

accent

#E246D0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3F2FB6

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

Preview Lab → · Contrast checker → · Palette generator →