#3F56BD#3F56BD

#3F56BD is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.4% C 0.164 H 269.9°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#3F56BD
RGB	rgb(63, 86, 189)
HSL	hsl(229, 50%, 49%)
HSV	hsv(229, 67%, 74%)
CMYK	cmyk(66.7%, 54.5%, 0%, 25.9%)
CIE-LAB	lab(40.22, 25.20, -56.92)
CIE-LCH	lch(40.22, 62.25, 293.88°)
OKLab	oklab(49.42% -0.0002 -0.1636)
OKLCH	oklch(49.42% 0.164 269.9)
XYZ	xyz(14.5599, 11.3851, 49.5645)
Luminance	0.1139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56BD #BDA63F

analogous

#3F95BD #3F56BD #673FBD

triadic

#3F56BD #BD3F56 #56BD3F

tetradic

#3F56BD #BD3F95 #BDA63F #3FBD67

square

#3F56BD #BD3F95 #BDA63F #3FBD67

split-complementary

#3F56BD #BD673F #95BD3F

monochromatic

#202C61 #30418F #3F56BD #6B7DCE #99A6DD

Accessibility & contrast

On white

6.41

#3F56BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#3F56BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56BD

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56BD	#FFFFFF	#000000	##FFFFFF
##3F56BD	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0465C1

Deuteranopia (green-blind)

#0059BB

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f56bd;
/* rgb */ color: rgb(63, 86, 189);
/* oklch */ color: oklch(49.4% 0.164 269.9);

Tailwind

colors: {
  custom: {
    50: '#8285d2',
    500: '#3f56bd',
    950: '#000000',
  },
}

SCSS

$custom: #3f56bd;
$custom-light: #8285d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56bd",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 189
  },
  "hsl": {
    "h": 229.048,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49419,
    "c": 0.16362,
    "h": 269.9
  },
  "luminance": 0.11386
}

Semantic roles & 50–950 ramp

primary

#3F56BD

secondary

#C9BE8F

accent

#C04EDA

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F56BD

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

Preview Lab → · Contrast checker → · Palette generator →