#3F39C3#3F39C3

#3F39C3 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.9% C 0.206 H 276.1°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F39C3
RGB	rgb(63, 57, 195)
HSL	hsl(243, 55%, 49%)
HSV	hsv(243, 71%, 76%)
CMYK	cmyk(67.7%, 70.8%, 0%, 23.5%)
CIE-LAB	lab(33.82, 45.23, -70.88)
CIE-LCH	lch(33.82, 84.08, 302.54°)
OKLab	oklab(44.87% 0.0218 -0.2048)
OKLCH	oklch(44.87% 0.206 276.1)
XYZ	xyz(13.3601, 7.9219, 52.4442)
Luminance	0.0792 (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

#3F39C3 #BDC339

analogous

#3978C3 #3F39C3 #8439C3

triadic

#3F39C3 #C33F39 #39C33F

tetradic

#3F39C3 #C33978 #BDC339 #39C384

square

#3F39C3 #C33978 #BDC339 #39C384

split-complementary

#3F39C3 #C38439 #78C339

monochromatic

#201D64 #302B94 #3F39C3 #6B67D2 #9996E0

Accessibility & contrast

On white

8.13

#3F39C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3F39C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F39C3

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F39C3	#FFFFFF	#000000	##FFFFFF
##3F39C3	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C7

Deuteranopia (green-blind)

#0049C0

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f39c3;
/* rgb */ color: rgb(63, 57, 195);
/* oklch */ color: oklch(44.9% 0.206 276.1);

Tailwind

colors: {
  custom: {
    50: '#8671d6',
    500: '#3f39c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f39c3;
$custom-light: #8671d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f39c3",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 195
  },
  "hsl": {
    "h": 242.609,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.44868,
    "c": 0.20593,
    "h": 276.1
  },
  "luminance": 0.07923
}

Semantic roles & 50–950 ramp

primary

#3F39C3

secondary

#C9CC8C

accent

#DE4AD8

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #3F39C3

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

Preview Lab → · Contrast checker → · Palette generator →