#3F4CCC#3F4CCC

#3F4CCC is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.8% C 0.196 H 272.3°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CCC
RGB	rgb(63, 76, 204)
HSL	hsl(234, 58%, 52%)
HSV	hsv(234, 69%, 80%)
CMYK	cmyk(69.1%, 62.7%, 0%, 20%)
CIE-LAB	lab(38.87, 36.84, -67.84)
CIE-LCH	lch(38.87, 77.19, 298.50°)
OKLab	oklab(48.78% 0.008 -0.1958)
OKLCH	oklch(48.78% 0.196 272.3)
XYZ	xyz(15.5298, 10.5838, 58.3395)
Luminance	0.1058 (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

#3F4CCC #CCBF3F

analogous

#3F93CC #3F4CCC #783FCC

triadic

#3F4CCC #CC3F4C #4CCC3F

tetradic

#3F4CCC #CC3F93 #CCBF3F #3FCC78

square

#3F4CCC #CC3F93 #CCBF3F #3FCC78

split-complementary

#3F4CCC #CC783F #93CC3F

monochromatic

#1E2672 #2B36A3 #3F4CCC #6F79D9 #A0A6E6

Accessibility & contrast

On white

6.74

#3F4CCC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3F4CCC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4CCC

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CCC	#FFFFFF	#000000	##FFFFFF
##3F4CCC	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D0

Deuteranopia (green-blind)

#0055CA

Tritanopia (blue-blind)

#006D85

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f4ccc;
/* rgb */ color: rgb(63, 76, 204);
/* oklch */ color: oklch(48.8% 0.196 272.3);

Tailwind

colors: {
  custom: {
    50: '#867edd',
    500: '#3f4ccc',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ccc;
$custom-light: #867edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ccc",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 204
  },
  "hsl": {
    "h": 234.468,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.48777,
    "c": 0.19598,
    "h": 272.3
  },
  "luminance": 0.10585
}

Semantic roles & 50–950 ramp

primary

#3F4CCC

secondary

#D2CC95

accent

#D347E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #3F4CCC

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

Preview Lab → · Contrast checker → · Palette generator →