#3F3DB3#3F3DB3

#3F3DB3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.0% C 0.181 H 276.7°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DB3
RGB	rgb(63, 61, 179)
HSL	hsl(241, 49%, 47%)
HSV	hsv(241, 66%, 70%)
CMYK	cmyk(64.8%, 65.9%, 0%, 29.8%)
CIE-LAB	lab(33.24, 37.57, -62.40)
CIE-LCH	lch(33.24, 72.83, 301.05°)
OKLab	oklab(44.01% 0.0211 -0.1799)
OKLCH	oklch(44.01% 0.181 276.7)
XYZ	xyz(11.8527, 7.6479, 43.4907)
Luminance	0.0765 (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

#3F3DB3 #B1B33D

analogous

#3D76B3 #3F3DB3 #7A3DB3

triadic

#3F3DB3 #B33F3D #3DB33F

tetradic

#3F3DB3 #B33D76 #B1B33D #3DB37A

square

#3F3DB3 #B33D76 #B1B33D #3DB37A

split-complementary

#3F3DB3 #B37A3D #76B33D

monochromatic

#1F1E58 #2F2D85 #3F3DB3 #6563CA #9291D9

Accessibility & contrast

On white

8.30

#3F3DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3F3DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DB3

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DB3	#FFFFFF	#000000	##FFFFFF
##3F3DB3	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f3db3;
/* rgb */ color: rgb(63, 61, 179);
/* oklch */ color: oklch(44.0% 0.181 276.7);

Tailwind

colors: {
  custom: {
    50: '#8273cb',
    500: '#3f3db3',
    950: '#000000',
  },
}

SCSS

$custom: #3f3db3;
$custom-light: #8273cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3db3",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 179
  },
  "hsl": {
    "h": 241.017,
    "s": 49.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44005,
    "c": 0.18117,
    "h": 276.7
  },
  "luminance": 0.07649
}

Semantic roles & 50–950 ramp

primary

#3F3DB3

secondary

#C4C587

accent

#D94FD6

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3F3DB3

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

Preview Lab → · Contrast checker → · Palette generator →