#3F3CAF#3F3CAF

#3F3CAF is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.177 H 277.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#3F3CAF
RGB	rgb(63, 60, 175)
HSL	hsl(242, 49%, 46%)
HSV	hsv(242, 66%, 69%)
CMYK	cmyk(64%, 65.7%, 0%, 31.4%)
CIE-LAB	lab(32.66, 36.84, -60.96)
CIE-LCH	lch(32.66, 71.22, 301.14°)
OKLab	oklab(43.48% 0.0223 -0.1757)
OKLCH	oklch(43.48% 0.177 277.2)
XYZ	xyz(11.4011, 7.3827, 41.3733)
Luminance	0.0738 (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

#3F3CAF #ACAF3C

analogous

#3C72AF #3F3CAF #783CAF

triadic

#3F3CAF #AF3F3C #3CAF3F

tetradic

#3F3CAF #AF3C72 #ACAF3C #3CAF78

square

#3F3CAF #AF3C72 #ACAF3C #3CAF78

split-complementary

#3F3CAF #AF783C #72AF3C

monochromatic

#1E1D54 #2F2C81 #3F3CAF #6360C8 #8F8DD8

Accessibility & contrast

On white

8.48

#3F3CAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3F3CAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3CAF

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3CAF	#FFFFFF	#000000	##FFFFFF
##3F3CAF	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B3

Deuteranopia (green-blind)

#0048AD

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f3caf;
/* rgb */ color: rgb(63, 60, 175);
/* oklch */ color: oklch(43.5% 0.177 277.2);

Tailwind

colors: {
  custom: {
    50: '#8172c8',
    500: '#3f3caf',
    950: '#000000',
  },
}

SCSS

$custom: #3f3caf;
$custom-light: #8172c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3caf",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 175
  },
  "hsl": {
    "h": 241.565,
    "s": 48.936,
    "l": 46.078
  },
  "oklch": {
    "l": 0.4348,
    "c": 0.17714,
    "h": 277.2
  },
  "luminance": 0.07384
}

Semantic roles & 50–950 ramp

primary

#3F3CAF

secondary

#C1C384

accent

#D84FD5

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3F3CAF

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

Preview Lab → · Contrast checker → · Palette generator →