#3F56BE#3F56BE

#3F56BE is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.5% C 0.165 H 270.0°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F56BE
RGB	rgb(63, 86, 190)
HSL	hsl(229, 50%, 50%)
HSV	hsv(229, 67%, 75%)
CMYK	cmyk(66.8%, 54.7%, 0%, 25.5%)
CIE-LAB	lab(40.29, 25.55, -57.38)
CIE-LCH	lch(40.29, 62.82, 294.00°)
OKLab	oklab(49.5% -0.0001 -0.165)
OKLCH	oklch(49.5% 0.165 270)
XYZ	xyz(14.6688, 11.4287, 50.1381)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56BE #BEA73F

analogous

#3F96BE #3F56BE #683FBE

triadic

#3F56BE #BE3F56 #56BE3F

tetradic

#3F56BE #BE3F96 #BEA73F #3FBE68

square

#3F56BE #BE3F96 #BEA73F #3FBE68

split-complementary

#3F56BE #BE683F #96BE3F

monochromatic

#212C62 #304190 #3F56BE #6C7ECE #9AA6DD

Accessibility & contrast

On white

6.39

#3F56BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#3F56BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56BE

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56BE	#FFFFFF	#000000	##FFFFFF
##3F56BE	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C2

Deuteranopia (green-blind)

#0059BC

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f56be;
/* rgb */ color: rgb(63, 86, 190);
/* oklch */ color: oklch(49.5% 0.165 270.0);

Tailwind

colors: {
  custom: {
    50: '#8285d2',
    500: '#3f56be',
    950: '#000000',
  },
}

SCSS

$custom: #3f56be;
$custom-light: #8285d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56be",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 190
  },
  "hsl": {
    "h": 229.134,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.49496,
    "c": 0.165,
    "h": 270
  },
  "luminance": 0.1143
}

Semantic roles & 50–950 ramp

primary

#3F56BE

secondary

#C9BF8F

accent

#C04EDA

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F56BE

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

Preview Lab → · Contrast checker → · Palette generator →