#3F56C4#3F56C4

#3F56C4 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.0% C 0.173 H 270.0°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#3F56C4
RGB	rgb(63, 86, 196)
HSL	hsl(230, 53%, 51%)
HSV	hsv(230, 68%, 77%)
CMYK	cmyk(67.9%, 56.1%, 0%, 23.1%)
CIE-LAB	lab(40.73, 27.69, -60.17)
CIE-LCH	lch(40.73, 66.24, 294.71°)
OKLab	oklab(49.96% 0.0001 -0.1732)
OKLCH	oklch(49.96% 0.173 270)
XYZ	xyz(15.3381, 11.6964, 53.6632)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56C4 #C4AD3F

analogous

#3F98C4 #3F56C4 #6A3FC4

triadic

#3F56C4 #C43F56 #56C43F

tetradic

#3F56C4 #C43F98 #C4AD3F #3FC46A

square

#3F56C4 #C43F98 #C4AD3F #3FC46A

split-complementary

#3F56C4 #C46A3F #98C43F

monochromatic

#202D68 #2E4197 #3F56C4 #6E7FD2 #9DA8E1

Accessibility & contrast

On white

6.29

#3F56C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3F56C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56C4

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56C4	#FFFFFF	#000000	##FFFFFF
##3F56C4	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C8

Deuteranopia (green-blind)

#005AC2

Tritanopia (blue-blind)

#007184

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3f56c4;
/* rgb */ color: rgb(63, 86, 196);
/* oklch */ color: oklch(50.0% 0.173 270.0);

Tailwind

colors: {
  custom: {
    50: '#8485d7',
    500: '#3f56c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f56c4;
$custom-light: #8485d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56c4",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 196
  },
  "hsl": {
    "h": 229.624,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.49961,
    "c": 0.17319,
    "h": 270
  },
  "luminance": 0.11698
}

Semantic roles & 50–950 ramp

primary

#3F56C4

secondary

#CDC392

accent

#C34BDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F56C4

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

Preview Lab → · Contrast checker → · Palette generator →