#3F2CB8#3F2CB8

#3F2CB8 is a dark, highly saturated blue. Relative luminance 0.063; OKLCH L 42.0% C 0.206 H 278.9°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F2CB8
RGB	rgb(63, 44, 184)
HSL	hsl(248, 61%, 45%)
HSV	hsv(248, 76%, 72%)
CMYK	cmyk(65.8%, 76.1%, 0%, 27.8%)
CIE-LAB	lab(30.20, 48.87, -70.36)
CIE-LCH	lch(30.20, 85.66, 304.78°)
OKLab	oklab(41.98% 0.0319 -0.2032)
OKLCH	oklch(41.98% 0.206 278.9)
XYZ	xyz(11.5995, 6.3179, 45.9463)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Indigo Blue

#3A18B1

ΔE00 3.84

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F2CB8 #A5B82C

analogous

#2C5FB8 #3F2CB8 #852CB8

triadic

#3F2CB8 #B83F2C #2CB83F

tetradic

#3F2CB8 #B82C5F #A5B82C #2CB885

square

#3F2CB8 #B82C5F #A5B82C #2CB885

split-complementary

#3F2CB8 #B8852C #5FB82C

monochromatic

#1D1455 #2E2087 #3F2CB8 #5F4DD4 #8C7EE0

Accessibility & contrast

On white

9.28

#3F2CB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#3F2CB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F2CB8

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F2CB8	#FFFFFF	#000000	##FFFFFF
##3F2CB8	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CBC

Deuteranopia (green-blind)

#0041B5

Tritanopia (blue-blind)

#005570

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3f2cb8;
/* rgb */ color: rgb(63, 44, 184);
/* oklch */ color: oklch(42.0% 0.206 278.9);

Tailwind

colors: {
  custom: {
    50: '#8468cf',
    500: '#3f2cb8',
    950: '#000000',
  },
}

SCSS

$custom: #3f2cb8;
$custom-light: #8468cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f2cb8",
  "rgb": {
    "r": 63,
    "g": 44,
    "b": 184
  },
  "hsl": {
    "h": 248.143,
    "s": 61.404,
    "l": 44.706
  },
  "oklch": {
    "l": 0.41976,
    "c": 0.20564,
    "h": 278.9
  },
  "luminance": 0.06319
}

Semantic roles & 50–950 ramp

primary

#3F2CB8

secondary

#BEC977

accent

#E543CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3F2CB8

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

Preview Lab → · Contrast checker → · Palette generator →