#3F56C7#3F56C7

#3F56C7 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.177 H 270.1°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F56C7
RGB	rgb(63, 86, 199)
HSL	hsl(230, 55%, 51%)
HSV	hsv(230, 68%, 78%)
CMYK	cmyk(68.3%, 56.8%, 0%, 22%)
CIE-LAB	lab(40.95, 28.76, -61.55)
CIE-LCH	lch(40.95, 67.94, 295.05°)
OKLab	oklab(50.2% 0.0003 -0.1772)
OKLCH	oklch(50.2% 0.177 270.1)
XYZ	xyz(15.6830, 11.8343, 55.4795)
Luminance	0.1184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56C7 #C7B03F

analogous

#3F9AC7 #3F56C7 #6C3FC7

triadic

#3F56C7 #C73F56 #56C73F

tetradic

#3F56C7 #C73F9A #C7B03F #3FC76C

square

#3F56C7 #C73F9A #C7B03F #3FC76C

split-complementary

#3F56C7 #C76C3F #9AC73F

monochromatic

#202C6C #2D409B #3F56C7 #6E80D5 #9EA9E3

Accessibility & contrast

On white

6.24

#3F56C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#3F56C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56C7

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56C7	#FFFFFF	#000000	##FFFFFF
##3F56C7	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CB

Deuteranopia (green-blind)

#005BC5

Tritanopia (blue-blind)

#007286

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f56c7;
/* rgb */ color: rgb(63, 86, 199);
/* oklch */ color: oklch(50.2% 0.177 270.1);

Tailwind

colors: {
  custom: {
    50: '#8485d9',
    500: '#3f56c7',
    950: '#000000',
  },
}

SCSS

$custom: #3f56c7;
$custom-light: #8485d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56c7",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 199
  },
  "hsl": {
    "h": 229.853,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50197,
    "c": 0.17725,
    "h": 270.1
  },
  "luminance": 0.11836
}

Semantic roles & 50–950 ramp

primary

#3F56C7

secondary

#CFC593

accent

#C54ADE

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F56C7

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

Preview Lab → · Contrast checker → · Palette generator →