#3F3FAF#3F3FAF

#3F3FAF is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.0% C 0.173 H 276.6°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#3F3FAF
RGB	rgb(63, 63, 175)
HSL	hsl(240, 47%, 47%)
HSV	hsv(240, 64%, 69%)
CMYK	cmyk(64%, 64%, 0%, 31.4%)
CIE-LAB	lab(33.36, 34.98, -59.81)
CIE-LCH	lch(33.36, 69.29, 300.32°)
OKLab	oklab(43.99% 0.0198 -0.1724)
OKLCH	oklch(43.99% 0.174 276.6)
XYZ	xyz(11.5628, 7.7060, 41.4272)
Luminance	0.0771 (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

#3F3FAF #AFAF3F

analogous

#3F77AF #3F3FAF #773FAF

triadic

#3F3FAF #AF3F3F #3FAF3F

tetradic

#3F3FAF #AF3F77 #AFAF3F #3FAF77

square

#3F3FAF #AF3F77 #AFAF3F #3FAF77

split-complementary

#3F3FAF #AF773F #77AF3F

monochromatic

#1F1F55 #2F2F82 #3F3FAF #6464C7 #9191D7

Accessibility & contrast

On white

8.26

#3F3FAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3F3FAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3FAF

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3FAF	#FFFFFF	#000000	##FFFFFF
##3F3FAF	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B3

Deuteranopia (green-blind)

#004AAD

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f3faf;
/* rgb */ color: rgb(63, 63, 175);
/* oklch */ color: oklch(44.0% 0.173 276.6);

Tailwind

colors: {
  custom: {
    50: '#8174c8',
    500: '#3f3faf',
    950: '#000000',
  },
}

SCSS

$custom: #3f3faf;
$custom-light: #8174c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3faf",
  "rgb": {
    "r": 63,
    "g": 63,
    "b": 175
  },
  "hsl": {
    "h": 240,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.4399,
    "c": 0.1735,
    "h": 276.6
  },
  "luminance": 0.07707
}

Semantic roles & 50–950 ramp

primary

#3F3FAF

secondary

#C3C387

accent

#D751D7

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3F3FAF

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

Preview Lab → · Contrast checker → · Palette generator →