#3F44C3#3F44C3

#3F44C3 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.6% C 0.194 H 274.2°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F44C3
RGB	rgb(63, 68, 195)
HSL	hsl(238, 52%, 51%)
HSV	hsv(238, 68%, 76%)
CMYK	cmyk(67.7%, 65.1%, 0%, 23.5%)
CIE-LAB	lab(36.23, 38.69, -66.92)
CIE-LCH	lch(36.23, 77.30, 300.03°)
OKLab	oklab(46.61% 0.0143 -0.1932)
OKLCH	oklch(46.61% 0.194 274.2)
XYZ	xyz(13.9641, 9.1299, 52.6455)
Luminance	0.0913 (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

#3F44C3 #C3BE3F

analogous

#3F86C3 #3F44C3 #7C3FC3

triadic

#3F44C3 #C33F44 #44C33F

tetradic

#3F44C3 #C33F86 #C3BE3F #3FC37C

square

#3F44C3 #C33F86 #C3BE3F #3FC37C

split-complementary

#3F44C3 #C37C3F #86C33F

monochromatic

#202367 #2F3396 #3F44C3 #6E71D2 #9C9FE0

Accessibility & contrast

On white

7.43

#3F44C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#3F44C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44C3

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44C3	#FFFFFF	#000000	##FFFFFF
##3F44C3	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC7

Deuteranopia (green-blind)

#004FC1

Tritanopia (blue-blind)

#00657D

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f44c3;
/* rgb */ color: rgb(63, 68, 195);
/* oklch */ color: oklch(46.6% 0.194 274.2);

Tailwind

colors: {
  custom: {
    50: '#8578d6',
    500: '#3f44c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f44c3;
$custom-light: #8578d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44c3",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 195
  },
  "hsl": {
    "h": 237.727,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.46612,
    "c": 0.1937,
    "h": 274.2
  },
  "luminance": 0.09131
}

Semantic roles & 50–950 ramp

primary

#3F44C3

secondary

#CCCA92

accent

#D64CDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F44C3

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

Preview Lab → · Contrast checker → · Palette generator →