#3F56BA#3F56BA

#3F56BA is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.159 H 269.9°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#3F56BA
RGB	rgb(63, 86, 186)
HSL	hsl(229, 49%, 49%)
HSV	hsv(229, 66%, 73%)
CMYK	cmyk(66.1%, 53.8%, 0%, 27.1%)
CIE-LAB	lab(40.01, 24.13, -55.51)
CIE-LCH	lch(40.01, 60.52, 293.49°)
OKLab	oklab(49.19% -0.0004 -0.1595)
OKLCH	oklch(49.19% 0.159 269.9)
XYZ	xyz(14.2376, 11.2562, 47.8672)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56BA #BAA33F

analogous

#3F94BA #3F56BA #653FBA

triadic

#3F56BA #BA3F56 #56BA3F

tetradic

#3F56BA #BA3F94 #BAA33F #3FBA65

square

#3F56BA #BA3F94 #BAA33F #3FBA65

split-complementary

#3F56BA #BA653F #94BA3F

monochromatic

#202C5F #30418C #3F56BA #6A7CCC #97A4DC

Accessibility & contrast

On white

6.46

#3F56BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3F56BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56BA

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56BA	#FFFFFF	#000000	##FFFFFF
##3F56BA	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F64BD

Deuteranopia (green-blind)

#0059B8

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f56ba;
/* rgb */ color: rgb(63, 86, 186);
/* oklch */ color: oklch(49.2% 0.159 269.9);

Tailwind

colors: {
  custom: {
    50: '#8285cf',
    500: '#3f56ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f56ba;
$custom-light: #8285cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56ba",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 186
  },
  "hsl": {
    "h": 228.78,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49192,
    "c": 0.15948,
    "h": 269.9
  },
  "luminance": 0.11258
}

Semantic roles & 50–950 ramp

primary

#3F56BA

secondary

#C8BD8D

accent

#BF4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #3F56BA

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

Preview Lab → · Contrast checker → · Palette generator →