#3F44C2#3F44C2

#3F44C2 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.5% C 0.192 H 274.3°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F44C2
RGB	rgb(63, 68, 194)
HSL	hsl(238, 52%, 50%)
HSV	hsv(238, 68%, 76%)
CMYK	cmyk(67.5%, 64.9%, 0%, 23.9%)
CIE-LAB	lab(36.15, 38.35, -66.47)
CIE-LCH	lch(36.15, 76.74, 299.98°)
OKLab	oklab(46.52% 0.0144 -0.1919)
OKLCH	oklch(46.52% 0.192 274.3)
XYZ	xyz(13.8514, 9.0848, 52.0521)
Luminance	0.0909 (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

#3F44C2 #C2BD3F

analogous

#3F85C2 #3F44C2 #7B3FC2

triadic

#3F44C2 #C23F44 #44C23F

tetradic

#3F44C2 #C23F85 #C2BD3F #3FC27B

square

#3F44C2 #C23F85 #C2BD3F #3FC27B

split-complementary

#3F44C2 #C27B3F #85C23F

monochromatic

#202366 #2F3395 #3F44C2 #6D71D1 #9C9EE0

Accessibility & contrast

On white

7.45

#3F44C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#3F44C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44C2

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44C2	#FFFFFF	#000000	##FFFFFF
##3F44C2	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC6

Deuteranopia (green-blind)

#004FC0

Tritanopia (blue-blind)

#00657D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f44c2;
/* rgb */ color: rgb(63, 68, 194);
/* oklch */ color: oklch(46.5% 0.192 274.3);

Tailwind

colors: {
  custom: {
    50: '#8478d5',
    500: '#3f44c2',
    950: '#000000',
  },
}

SCSS

$custom: #3f44c2;
$custom-light: #8478d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44c2",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 194
  },
  "hsl": {
    "h": 237.71,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.46522,
    "c": 0.19241,
    "h": 274.3
  },
  "luminance": 0.09086
}

Semantic roles & 50–950 ramp

primary

#3F44C2

secondary

#CCC991

accent

#D64DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F44C2

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

Preview Lab → · Contrast checker → · Palette generator →