#3F47CD#3F47CD

#3F47CD is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.0% C 0.203 H 273.2°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F47CD
RGB	rgb(63, 71, 205)
HSL	hsl(237, 59%, 53%)
HSV	hsv(237, 69%, 80%)
CMYK	cmyk(69.3%, 65.4%, 0%, 19.6%)
CIE-LAB	lab(37.79, 40.26, -70.19)
CIE-LCH	lch(37.79, 80.91, 299.84°)
OKLab	oklab(48.01% 0.0114 -0.2027)
OKLCH	oklch(48.01% 0.203 273.2)
XYZ	xyz(15.3189, 9.9696, 58.8628)
Luminance	0.0997 (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

#3F47CD #CDC53F

analogous

#3F8ECD #3F47CD #7E3FCD

triadic

#3F47CD #CD3F47 #47CD3F

tetradic

#3F47CD #CD3F8E #CDC53F #3FCD7E

square

#3F47CD #CD3F8E #CDC53F #3FCD7E

split-complementary

#3F47CD #CD7E3F #8ECD3F

monochromatic

#1E2374 #2B32A4 #3F47CD #7076DA #A0A4E6

Accessibility & contrast

On white

7.01

#3F47CD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3F47CD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F47CD

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F47CD	#FFFFFF	#000000	##FFFFFF
##3F47CD	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D1

Deuteranopia (green-blind)

#0052CA

Tritanopia (blue-blind)

#006A84

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f47cd;
/* rgb */ color: rgb(63, 71, 205);
/* oklch */ color: oklch(48.0% 0.203 273.2);

Tailwind

colors: {
  custom: {
    50: '#867add',
    500: '#3f47cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f47cd;
$custom-light: #867add;
$custom-dark: #000000;

JSON

{
  "hex": "#3f47cd",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 205
  },
  "hsl": {
    "h": 236.62,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.48011,
    "c": 0.20306,
    "h": 273.2
  },
  "luminance": 0.09971
}

Semantic roles & 50–950 ramp

primary

#3F47CD

secondary

#D3CF95

accent

#D946E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F47CD

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

Preview Lab → · Contrast checker → · Palette generator →