#3F5CCD#3F5CCD

#3F5CCD is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.178 H 268.6°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CCD
RGB	rgb(63, 92, 205)
HSL	hsl(228, 59%, 53%)
HSV	hsv(228, 69%, 80%)
CMYK	cmyk(69.3%, 55.1%, 0%, 19.6%)
CIE-LAB	lab(42.94, 27.07, -61.79)
CIE-LCH	lch(42.94, 67.46, 293.66°)
OKLab	oklab(51.83% -0.0044 -0.1779)
OKLCH	oklch(51.83% 0.178 268.6)
XYZ	xyz(16.8927, 13.1172, 59.3874)
Luminance	0.1312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CCD #CDB03F

analogous

#3FA3CD #3F5CCD #693FCD

triadic

#3F5CCD #CD3F5C #5CCD3F

tetradic

#3F5CCD #CD3FA3 #CDB03F #3FCD69

square

#3F5CCD #CD3FA3 #CDB03F #3FCD69

split-complementary

#3F5CCD #CD693F #A3CD3F

monochromatic

#1E3074 #2B44A4 #3F5CCD #7085DA #A0AEE6

Accessibility & contrast

On white

5.80

#3F5CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#3F5CCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CCD

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CCD	#FFFFFF	#000000	##FFFFFF
##3F5CCD	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD1

Deuteranopia (green-blind)

#005FCB

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f5ccd;
/* rgb */ color: rgb(63, 92, 205);
/* oklch */ color: oklch(51.8% 0.178 268.6);

Tailwind

colors: {
  custom: {
    50: '#8589dd',
    500: '#3f5ccd',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ccd;
$custom-light: #8589dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ccd",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 205
  },
  "hsl": {
    "h": 227.746,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51826,
    "c": 0.17793,
    "h": 268.6
  },
  "luminance": 0.13119
}

Semantic roles & 50–950 ramp

primary

#3F5CCD

secondary

#D3C695

accent

#C246E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5CCD

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

Preview Lab → · Contrast checker → · Palette generator →