#3F3CA3#3F3CA3

#3F3CA3 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.161 H 278.3°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F3CA3
RGB	rgb(63, 60, 163)
HSL	hsl(242, 46%, 44%)
HSV	hsv(242, 63%, 64%)
CMYK	cmyk(61.3%, 63.2%, 0%, 36.1%)
CIE-LAB	lab(31.65, 32.79, -55.42)
CIE-LCH	lch(31.65, 64.39, 300.61°)
OKLab	oklab(42.43% 0.0233 -0.1595)
OKLCH	oklch(42.43% 0.161 278.3)
XYZ	xyz(10.2745, 6.9321, 35.4398)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3CA3 #A0A33C

analogous

#3C6CA3 #3F3CA3 #723CA3

triadic

#3F3CA3 #A33F3C #3CA33F

tetradic

#3F3CA3 #A33C6C #A0A33C #3CA372

square

#3F3CA3 #A33C6C #A0A33C #3CA372

split-complementary

#3F3CA3 #A3723C #6CA33C

monochromatic

#1C1B4A #2E2C76 #3F3CA3 #5D5AC2 #8987D3

Accessibility & contrast

On white

8.80

#3F3CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3F3CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3CA3

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3CA3	#FFFFFF	#000000	##FFFFFF
##3F3CA3	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA6

Deuteranopia (green-blind)

#0046A1

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3f3ca3;
/* rgb */ color: rgb(63, 60, 163);
/* oklch */ color: oklch(42.4% 0.161 278.3);

Tailwind

colors: {
  custom: {
    50: '#7f72bf',
    500: '#3f3ca3',
    950: '#000000',
  },
}

SCSS

$custom: #3f3ca3;
$custom-light: #7f72bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3ca3",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 163
  },
  "hsl": {
    "h": 241.748,
    "s": 46.188,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42428,
    "c": 0.16116,
    "h": 278.3
  },
  "luminance": 0.06933
}

Semantic roles & 50–950 ramp

primary

#3F3CA3

secondary

#BBBD7E

accent

#D652D2

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3F3CA3

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

Preview Lab → · Contrast checker → · Palette generator →