#3F56D0#3F56D0

#3F56D0 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.9% C 0.189 H 270.1°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#3F56D0
RGB	rgb(63, 86, 208)
HSL	hsl(230, 61%, 53%)
HSV	hsv(230, 70%, 82%)
CMYK	cmyk(69.7%, 58.7%, 0%, 18.4%)
CIE-LAB	lab(41.63, 31.95, -65.64)
CIE-LCH	lch(41.63, 73.00, 295.96°)
OKLab	oklab(50.92% 0.0004 -0.1893)
OKLCH	oklch(50.92% 0.189 270.1)
XYZ	xyz(16.7590, 12.2647, 61.1464)
Luminance	0.1227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56D0 #D0B93F

analogous

#3F9ED0 #3F56D0 #703FD0

triadic

#3F56D0 #D03F56 #56D03F

tetradic

#3F56D0 #D03F9E #D0B93F #3FD070

square

#3F56D0 #D03F9E #D0B93F #3FD070

split-complementary

#3F56D0 #D0703F #9ED03F

monochromatic

#1D2C77 #293DA9 #3F56D0 #7081DC #A1ADE8

Accessibility & contrast

On white

6.08

#3F56D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#3F56D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56D0

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56D0	#FFFFFF	#000000	##FFFFFF
##3F56D0	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D4

Deuteranopia (green-blind)

#005CCE

Tritanopia (blue-blind)

#00748B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f56d0;
/* rgb */ color: rgb(63, 86, 208);
/* oklch */ color: oklch(50.9% 0.189 270.1);

Tailwind

colors: {
  custom: {
    50: '#8685df',
    500: '#3f56d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f56d0;
$custom-light: #8685df;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56d0",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 208
  },
  "hsl": {
    "h": 230.483,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.5092,
    "c": 0.18926,
    "h": 270.1
  },
  "luminance": 0.12266
}

Semantic roles & 50–950 ramp

primary

#3F56D0

secondary

#D5CB96

accent

#CA44E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #3F56D0

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

Preview Lab → · Contrast checker → · Palette generator →