#3F41C2#3F41C2

#3F41C2 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 46.0% C 0.196 H 274.9°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F41C2
RGB	rgb(63, 65, 194)
HSL	hsl(239, 52%, 50%)
HSV	hsv(239, 68%, 76%)
CMYK	cmyk(67.5%, 66.5%, 0%, 23.9%)
CIE-LAB	lab(35.46, 40.18, -67.60)
CIE-LCH	lch(35.46, 78.64, 300.73°)
OKLab	oklab(46.02% 0.0166 -0.1952)
OKLCH	oklch(46.02% 0.196 274.9)
XYZ	xyz(13.6746, 8.7312, 51.9931)
Luminance	0.0873 (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

#3F41C2 #C2C03F

analogous

#3F82C2 #3F41C2 #7E3FC2

triadic

#3F41C2 #C23F41 #41C23F

tetradic

#3F41C2 #C23F82 #C2C03F #3FC27E

square

#3F41C2 #C23F82 #C2C03F #3FC27E

split-complementary

#3F41C2 #C27E3F #82C23F

monochromatic

#202266 #2F3195 #3F41C2 #6D6FD1 #9C9DE0

Accessibility & contrast

On white

7.65

#3F41C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3F41C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F41C2

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F41C2	#FFFFFF	#000000	##FFFFFF
##3F41C2	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C6

Deuteranopia (green-blind)

#004DC0

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f41c2;
/* rgb */ color: rgb(63, 65, 194);
/* oklch */ color: oklch(46.0% 0.196 274.9);

Tailwind

colors: {
  custom: {
    50: '#8576d6',
    500: '#3f41c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f41c2;
$custom-light: #8576d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f41c2",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 194
  },
  "hsl": {
    "h": 239.084,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.46024,
    "c": 0.19587,
    "h": 274.9
  },
  "luminance": 0.08732
}

Semantic roles & 50–950 ramp

primary

#3F41C2

secondary

#CCCB91

accent

#D94DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3F41C2

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

Preview Lab → · Contrast checker → · Palette generator →