#3F3DB4#3F3DB4

#3F3DB4 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.1% C 0.182 H 276.6°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DB4
RGB	rgb(63, 61, 180)
HSL	hsl(241, 49%, 47%)
HSV	hsv(241, 66%, 71%)
CMYK	cmyk(65%, 66.1%, 0%, 29.4%)
CIE-LAB	lab(33.33, 37.90, -62.85)
CIE-LCH	lch(33.33, 73.39, 301.09°)
OKLab	oklab(44.1% 0.021 -0.1813)
OKLCH	oklch(44.1% 0.182 276.6)
XYZ	xyz(11.9542, 7.6885, 44.0252)
Luminance	0.0769 (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

#3F3DB4 #B2B43D

analogous

#3D77B4 #3F3DB4 #7A3DB4

triadic

#3F3DB4 #B43F3D #3DB43F

tetradic

#3F3DB4 #B43D77 #B2B43D #3DB47A

square

#3F3DB4 #B43D77 #B2B43D #3DB47A

split-complementary

#3F3DB4 #B47A3D #77B43D

monochromatic

#1F1E59 #2F2E86 #3F3DB4 #6664CA #9392DA

Accessibility & contrast

On white

8.27

#3F3DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3F3DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DB4

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DB4	#FFFFFF	#000000	##FFFFFF
##3F3DB4	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f3db4;
/* rgb */ color: rgb(63, 61, 180);
/* oklch */ color: oklch(44.1% 0.182 276.6);

Tailwind

colors: {
  custom: {
    50: '#8273cb',
    500: '#3f3db4',
    950: '#000000',
  },
}

SCSS

$custom: #3f3db4;
$custom-light: #8273cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3db4",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 180
  },
  "hsl": {
    "h": 241.008,
    "s": 49.378,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44095,
    "c": 0.18248,
    "h": 276.6
  },
  "luminance": 0.0769
}

Semantic roles & 50–950 ramp

primary

#3F3DB4

secondary

#C4C588

accent

#D94FD7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3F3DB4

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

Preview Lab → · Contrast checker → · Palette generator →