#3F3CBE#3F3CBE

#3F3CBE is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.9% C 0.196 H 276.0°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F3CBE
RGB	rgb(63, 60, 190)
HSL	hsl(241, 52%, 49%)
HSV	hsv(241, 68%, 75%)
CMYK	cmyk(66.8%, 68.4%, 0%, 25.5%)
CIE-LAB	lab(33.99, 41.84, -67.66)
CIE-LCH	lch(33.99, 79.55, 301.73°)
OKLab	oklab(44.85% 0.0205 -0.1954)
OKLCH	oklch(44.85% 0.196 276)
XYZ	xyz(12.9570, 8.0050, 49.5675)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.78

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3CBE #BBBE3C

analogous

#3C7ABE #3F3CBE #803CBE

triadic

#3F3CBE #BE3F3C #3CBE3F

tetradic

#3F3CBE #BE3C7A #BBBE3C #3CBE80

square

#3F3CBE #BE3C7A #BBBE3C #3CBE80

split-complementary

#3F3CBE #BE803C #7ABE3C

monochromatic

#201F61 #302D8F #3F3CBE #6A68CF #9896DE

Accessibility & contrast

On white

8.07

#3F3CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3F3CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3CBE

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3CBE	#FFFFFF	#000000	##FFFFFF
##3F3CBE	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3cbe;
/* rgb */ color: rgb(63, 60, 190);
/* oklch */ color: oklch(44.9% 0.196 276.0);

Tailwind

colors: {
  custom: {
    50: '#8473d3',
    500: '#3f3cbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f3cbe;
$custom-light: #8473d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3cbe",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 190
  },
  "hsl": {
    "h": 241.385,
    "s": 52,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44852,
    "c": 0.19644,
    "h": 276
  },
  "luminance": 0.08006
}

Semantic roles & 50–950 ramp

primary

#3F3CBE

secondary

#C8CA8C

accent

#DB4CD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3CBE

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

Preview Lab → · Contrast checker → · Palette generator →