#3F56CE#3F56CE

#3F56CE is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.8% C 0.187 H 270.1°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F56CE
RGB	rgb(63, 86, 206)
HSL	hsl(230, 59%, 53%)
HSV	hsv(230, 69%, 81%)
CMYK	cmyk(69.4%, 58.3%, 0%, 19.2%)
CIE-LAB	lab(41.48, 31.25, -64.74)
CIE-LCH	lch(41.48, 71.88, 295.77°)
OKLab	oklab(50.76% 0.0004 -0.1866)
OKLCH	oklch(50.76% 0.187 270.1)
XYZ	xyz(16.5145, 12.1669, 59.8587)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56CE #CEB73F

analogous

#3F9DCE #3F56CE #703FCE

triadic

#3F56CE #CE3F56 #56CE3F

tetradic

#3F56CE #CE3F9D #CEB73F #3FCE70

square

#3F56CE #CE3F9D #CEB73F #3FCE70

split-complementary

#3F56CE #CE703F #9DCE3F

monochromatic

#1E2C75 #2A3EA6 #3F56CE #7081DA #A1ACE7

Accessibility & contrast

On white

6.12

#3F56CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3F56CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56CE

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56CE	#FFFFFF	#000000	##FFFFFF
##3F56CE	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D2

Deuteranopia (green-blind)

#005BCC

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f56ce;
/* rgb */ color: rgb(63, 86, 206);
/* oklch */ color: oklch(50.8% 0.187 270.1);

Tailwind

colors: {
  custom: {
    50: '#8685de',
    500: '#3f56ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f56ce;
$custom-light: #8685de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56ce",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 206
  },
  "hsl": {
    "h": 230.35,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.50758,
    "c": 0.18661,
    "h": 270.1
  },
  "luminance": 0.12169
}

Semantic roles & 50–950 ramp

primary

#3F56CE

secondary

#D3C995

accent

#C945E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F56CE

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

Preview Lab → · Contrast checker → · Palette generator →