#3F3CBA#3F3CBA

#3F3CBA is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.5% C 0.191 H 276.3°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F3CBA
RGB	rgb(63, 60, 186)
HSL	hsl(241, 51%, 48%)
HSV	hsv(241, 68%, 73%)
CMYK	cmyk(66.1%, 67.7%, 0%, 27.1%)
CIE-LAB	lab(33.63, 40.51, -65.90)
CIE-LCH	lch(33.63, 77.35, 301.58°)
OKLab	oklab(44.48% 0.0211 -0.1902)
OKLCH	oklch(44.48% 0.191 276.3)
XYZ	xyz(12.5258, 7.8326, 47.2966)
Luminance	0.0783 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.64

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3CBA #B7BA3C

analogous

#3C78BA #3F3CBA #7E3CBA

triadic

#3F3CBA #BA3F3C #3CBA3F

tetradic

#3F3CBA #BA3C78 #B7BA3C #3CBA7E

square

#3F3CBA #BA3C78 #B7BA3C #3CBA7E

split-complementary

#3F3CBA #BA7E3C #78BA3C

monochromatic

#201E5D #2F2D8C #3F3CBA #6866CE #9694DC

Accessibility & contrast

On white

8.18

#3F3CBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3F3CBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3CBA

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3CBA	#FFFFFF	#000000	##FFFFFF
##3F3CBA	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BE

Deuteranopia (green-blind)

#004AB8

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f3cba;
/* rgb */ color: rgb(63, 60, 186);
/* oklch */ color: oklch(44.5% 0.191 276.3);

Tailwind

colors: {
  custom: {
    50: '#8372d0',
    500: '#3f3cba',
    950: '#000000',
  },
}

SCSS

$custom: #3f3cba;
$custom-light: #8372d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3cba",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 186
  },
  "hsl": {
    "h": 241.429,
    "s": 51.22,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4448,
    "c": 0.19136,
    "h": 276.3
  },
  "luminance": 0.07834
}

Semantic roles & 50–950 ramp

primary

#3F3CBA

secondary

#C6C88A

accent

#DB4DD7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3F3CBA

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

Preview Lab → · Contrast checker → · Palette generator →