#3F56AD#3F56AD

#3F56AD is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.141 H 269.4°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F56AD
RGB	rgb(63, 86, 173)
HSL	hsl(227, 47%, 46%)
HSV	hsv(227, 64%, 68%)
CMYK	cmyk(63.6%, 50.3%, 0%, 32.2%)
CIE-LAB	lab(39.12, 19.49, -49.29)
CIE-LCH	lch(39.12, 53.01, 291.57°)
OKLab	oklab(48.24% -0.0015 -0.1412)
OKLCH	oklch(48.24% 0.141 269.4)
XYZ	xyz(12.9180, 10.7283, 40.9171)
Luminance	0.1073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56AD #AD963F

analogous

#3F8DAD #3F56AD #5F3FAD

triadic

#3F56AD #AD3F56 #56AD3F

tetradic

#3F56AD #AD3F8D #AD963F #3FAD5F

square

#3F56AD #AD3F8D #AD963F #3FAD5F

split-complementary

#3F56AD #AD5F3F #8DAD3F

monochromatic

#1E2953 #2F4080 #3F56AD #6378C6 #909FD7

Accessibility & contrast

On white

6.68

#3F56AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3F56AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56AD

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56AD	#FFFFFF	#000000	##FFFFFF
##3F56AD	1.00	6.68	3.15	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2761B0

Deuteranopia (green-blind)

#0A57AB

Tritanopia (blue-blind)

#006A79

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f56ad;
/* rgb */ color: rgb(63, 86, 173);
/* oklch */ color: oklch(48.2% 0.141 269.4);

Tailwind

colors: {
  custom: {
    50: '#7f85c6',
    500: '#3f56ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f56ad;
$custom-light: #7f85c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56ad",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 173
  },
  "hsl": {
    "h": 227.455,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48236,
    "c": 0.1412,
    "h": 269.4
  },
  "luminance": 0.10729
}

Semantic roles & 50–950 ramp

primary

#3F56AD

secondary

#C2B586

accent

#BB52D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F56AD

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

Preview Lab → · Contrast checker → · Palette generator →