#3F3C8D#3F3C8D

#3F3C8D is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.6% C 0.130 H 280.5°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F3C8D
RGB	rgb(63, 60, 141)
HSL	hsl(242, 40%, 39%)
HSV	hsv(242, 57%, 55%)
CMYK	cmyk(55.3%, 57.4%, 0%, 44.7%)
CIE-LAB	lab(29.94, 25.34, -44.79)
CIE-LCH	lch(29.94, 51.46, 299.50°)
OKLab	oklab(40.63% 0.0239 -0.1282)
OKLCH	oklch(40.63% 0.13 280.5)
XYZ	xyz(8.4720, 6.2110, 25.9466)
Luminance	0.0621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3C8D #8A8D3C

analogous

#3C628D #3F3C8D #683C8D

triadic

#3F3C8D #8D3F3C #3C8D3F

tetradic

#3F3C8D #8D3C62 #8A8D3C #3C8D68

square

#3F3C8D #8D3C62 #8A8D3C #3C8D68

split-complementary

#3F3C8D #8D683C #628D3C

monochromatic

#191737 #2C2A62 #3F3C8D #5551B5 #7F7CC7

Accessibility & contrast

On white

9.36

#3F3C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#3F3C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3C8D

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3C8D	#FFFFFF	#000000	##FFFFFF
##3F3C8D	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024A90

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#1C4F5E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f3c8d;
/* rgb */ color: rgb(63, 60, 141);
/* oklch */ color: oklch(40.6% 0.130 280.5);

Tailwind

colors: {
  custom: {
    50: '#7b72af',
    500: '#3f3c8d',
    950: '#000000',
  },
}

SCSS

$custom: #3f3c8d;
$custom-light: #7b72af;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3c8d",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 141
  },
  "hsl": {
    "h": 242.222,
    "s": 40.299,
    "l": 39.412
  },
  "oklch": {
    "l": 0.40626,
    "c": 0.13042,
    "h": 280.5
  },
  "luminance": 0.06212
}

Semantic roles & 50–950 ramp

primary

#3F3C8D

secondary

#AFB174

accent

#D058CC

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #3F3C8D

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

Preview Lab → · Contrast checker → · Palette generator →