#3F3CBD#3F3CBD

#3F3CBD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.8% C 0.195 H 276.1°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F3CBD
RGB	rgb(63, 60, 189)
HSL	hsl(241, 52%, 49%)
HSV	hsv(241, 68%, 74%)
CMYK	cmyk(66.7%, 68.3%, 0%, 25.9%)
CIE-LAB	lab(33.90, 41.51, -67.22)
CIE-LCH	lch(33.90, 79.00, 301.70°)
OKLab	oklab(44.76% 0.0207 -0.1941)
OKLCH	oklch(44.76% 0.195 276.1)
XYZ	xyz(12.8481, 7.9615, 48.9939)
Luminance	0.0796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.74

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3CBD #BABD3C

analogous

#3C7ABD #3F3CBD #803CBD

triadic

#3F3CBD #BD3F3C #3CBD3F

tetradic

#3F3CBD #BD3C7A #BABD3C #3CBD80

square

#3F3CBD #BD3C7A #BABD3C #3CBD80

split-complementary

#3F3CBD #BD803C #7ABD3C

monochromatic

#201F60 #302D8F #3F3CBD #6A67CF #9796DE

Accessibility & contrast

On white

8.10

#3F3CBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3F3CBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3CBD

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3CBD	#FFFFFF	#000000	##FFFFFF
##3F3CBD	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)

#0055C1

Deuteranopia (green-blind)

#004ABB

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f3cbd;
/* rgb */ color: rgb(63, 60, 189);
/* oklch */ color: oklch(44.8% 0.195 276.1);

Tailwind

colors: {
  custom: {
    50: '#8473d2',
    500: '#3f3cbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f3cbd;
$custom-light: #8473d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3cbd",
  "rgb": {
    "r": 63,
    "g": 60,
    "b": 189
  },
  "hsl": {
    "h": 241.395,
    "s": 51.807,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44759,
    "c": 0.19517,
    "h": 276.1
  },
  "luminance": 0.07963
}

Semantic roles & 50–950 ramp

primary

#3F3CBD

secondary

#C8C98C

accent

#DB4DD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F3CBD

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

Preview Lab → · Contrast checker → · Palette generator →