#3F4ACD#3F4ACD

#3F4ACD is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.5% C 0.200 H 272.7°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F4ACD
RGB	rgb(63, 74, 205)
HSL	hsl(235, 59%, 53%)
HSV	hsv(235, 69%, 80%)
CMYK	cmyk(69.3%, 63.9%, 0%, 19.6%)
CIE-LAB	lab(38.48, 38.42, -69.05)
CIE-LCH	lch(38.48, 79.02, 299.09°)
OKLab	oklab(48.52% 0.0093 -0.1994)
OKLCH	oklch(48.52% 0.2 272.7)
XYZ	xyz(15.5144, 10.3606, 58.9280)
Luminance	0.1036 (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

#3F4ACD #CDC23F

analogous

#3F91CD #3F4ACD #7B3FCD

triadic

#3F4ACD #CD3F4A #4ACD3F

tetradic

#3F4ACD #CD3F91 #CDC23F #3FCD7B

square

#3F4ACD #CD3F91 #CDC23F #3FCD7B

split-complementary

#3F4ACD #CD7B3F #91CD3F

monochromatic

#1E2574 #2B34A4 #3F4ACD #7078DA #A0A6E6

Accessibility & contrast

On white

6.84

#3F4ACD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3F4ACD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4ACD

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4ACD	#FFFFFF	#000000	##FFFFFF
##3F4ACD	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D1

Deuteranopia (green-blind)

#0054CA

Tritanopia (blue-blind)

#006C85

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4acd;
/* rgb */ color: rgb(63, 74, 205);
/* oklch */ color: oklch(48.5% 0.200 272.7);

Tailwind

colors: {
  custom: {
    50: '#867cdd',
    500: '#3f4acd',
    950: '#000000',
  },
}

SCSS

$custom: #3f4acd;
$custom-light: #867cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4acd",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 205
  },
  "hsl": {
    "h": 235.352,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.48518,
    "c": 0.19961,
    "h": 272.7
  },
  "luminance": 0.10362
}

Semantic roles & 50–950 ramp

primary

#3F4ACD

secondary

#D3CE95

accent

#D646E2

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F4ACD

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

Preview Lab → · Contrast checker → · Palette generator →