#3F4BC3#3F4BC3

#3F4BC3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.8% C 0.185 H 272.8°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BC3
RGB	rgb(63, 75, 195)
HSL	hsl(235, 52%, 51%)
HSV	hsv(235, 68%, 76%)
CMYK	cmyk(67.7%, 61.5%, 0%, 23.5%)
CIE-LAB	lab(37.89, 34.34, -64.21)
CIE-LCH	lch(37.89, 72.81, 298.14°)
OKLab	oklab(47.83% 0.0091 -0.1852)
OKLCH	oklch(47.83% 0.185 272.8)
XYZ	xyz(14.4130, 10.0277, 52.7952)
Luminance	0.1003 (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

#3F4BC3 #C3B73F

analogous

#3F8DC3 #3F4BC3 #753FC3

triadic

#3F4BC3 #C33F4B #4BC33F

tetradic

#3F4BC3 #C33F8D #C3B73F #3FC375

square

#3F4BC3 #C33F8D #C3B73F #3FC375

split-complementary

#3F4BC3 #C3753F #8DC33F

monochromatic

#202767 #2F3896 #3F4BC3 #6E77D2 #9CA2E0

Accessibility & contrast

On white

6.99

#3F4BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#3F4BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BC3

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BC3	#FFFFFF	#000000	##FFFFFF
##3F4BC3	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC7

Deuteranopia (green-blind)

#0053C1

Tritanopia (blue-blind)

#006980

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f4bc3;
/* rgb */ color: rgb(63, 75, 195);
/* oklch */ color: oklch(47.8% 0.185 272.8);

Tailwind

colors: {
  custom: {
    50: '#847dd6',
    500: '#3f4bc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bc3;
$custom-light: #847dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bc3",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 195
  },
  "hsl": {
    "h": 234.545,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.47828,
    "c": 0.18539,
    "h": 272.8
  },
  "luminance": 0.10029
}

Semantic roles & 50–950 ramp

primary

#3F4BC3

secondary

#CCC792

accent

#CF4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F4BC3

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

Preview Lab → · Contrast checker → · Palette generator →