#3F3EB8#3F3EB8

#3F3EB8 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.186 H 276.1°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F3EB8
RGB	rgb(63, 62, 184)
HSL	hsl(240, 50%, 48%)
HSV	hsv(240, 66%, 72%)
CMYK	cmyk(65.8%, 66.3%, 0%, 27.8%)
CIE-LAB	lab(33.90, 38.64, -64.27)
CIE-LCH	lch(33.90, 74.99, 301.01°)
OKLab	oklab(44.62% 0.0198 -0.1854)
OKLCH	oklch(44.62% 0.186 276.1)
XYZ	xyz(12.4214, 7.9616, 46.2203)
Luminance	0.0796 (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

#3F3EB8 #B7B83E

analogous

#3E7AB8 #3F3EB8 #7C3EB8

triadic

#3F3EB8 #B83F3E #3EB83F

tetradic

#3F3EB8 #B83E7A #B7B83E #3EB87C

square

#3F3EB8 #B83E7A #B7B83E #3EB87C

split-complementary

#3F3EB8 #B87C3E #7AB83E

monochromatic

#201F5C #2F2F8A #3F3EB8 #6867CC #9695DB

Accessibility & contrast

On white

8.10

#3F3EB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3F3EB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3EB8

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3EB8	#FFFFFF	#000000	##FFFFFF
##3F3EB8	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BC

Deuteranopia (green-blind)

#004AB6

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3eb8;
/* rgb */ color: rgb(63, 62, 184);
/* oklch */ color: oklch(44.6% 0.186 276.1);

Tailwind

colors: {
  custom: {
    50: '#8374ce',
    500: '#3f3eb8',
    950: '#000000',
  },
}

SCSS

$custom: #3f3eb8;
$custom-light: #8374ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3eb8",
  "rgb": {
    "r": 63,
    "g": 62,
    "b": 184
  },
  "hsl": {
    "h": 240.492,
    "s": 49.593,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44622,
    "c": 0.18648,
    "h": 276.1
  },
  "luminance": 0.07963
}

Semantic roles & 50–950 ramp

primary

#3F3EB8

secondary

#C6C78B

accent

#D94FD8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3F3EB8

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

Preview Lab → · Contrast checker → · Palette generator →