#3F56CD#3F56CD

#3F56CD is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.7% C 0.185 H 270.1°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F56CD
RGB	rgb(63, 86, 205)
HSL	hsl(230, 59%, 53%)
HSV	hsv(230, 69%, 80%)
CMYK	cmyk(69.3%, 58%, 0%, 19.6%)
CIE-LAB	lab(41.40, 30.89, -64.28)
CIE-LCH	lch(41.40, 71.32, 295.67°)
OKLab	oklab(50.68% 0.0004 -0.1853)
OKLCH	oklch(50.68% 0.185 270.1)
XYZ	xyz(16.3934, 12.1185, 59.2209)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56CD #CDB63F

analogous

#3F9DCD #3F56CD #6F3FCD

triadic

#3F56CD #CD3F56 #56CD3F

tetradic

#3F56CD #CD3F9D #CDB63F #3FCD6F

square

#3F56CD #CD3F9D #CDB63F #3FCD6F

split-complementary

#3F56CD #CD6F3F #9DCD3F

monochromatic

#1E2C74 #2B3EA4 #3F56CD #7081DA #A0ABE6

Accessibility & contrast

On white

6.13

#3F56CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3F56CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56CD

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56CD	#FFFFFF	#000000	##FFFFFF
##3F56CD	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D1

Deuteranopia (green-blind)

#005BCB

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f56cd;
/* rgb */ color: rgb(63, 86, 205);
/* oklch */ color: oklch(50.7% 0.185 270.1);

Tailwind

colors: {
  custom: {
    50: '#8585dd',
    500: '#3f56cd',
    950: '#000000',
  },
}

SCSS

$custom: #3f56cd;
$custom-light: #8585dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56cd",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 205
  },
  "hsl": {
    "h": 230.282,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50677,
    "c": 0.18528,
    "h": 270.1
  },
  "luminance": 0.1212
}

Semantic roles & 50–950 ramp

primary

#3F56CD

secondary

#D3C995

accent

#C946E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F56CD

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

Preview Lab → · Contrast checker → · Palette generator →