#3F56C8#3F56C8

#3F56C8 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.3% C 0.179 H 270.1°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#3F56C8
RGB	rgb(63, 86, 200)
HSL	hsl(230, 55%, 52%)
HSV	hsv(230, 69%, 78%)
CMYK	cmyk(68.5%, 57%, 0%, 21.6%)
CIE-LAB	lab(41.03, 29.12, -62.01)
CIE-LCH	lch(41.03, 68.50, 295.15°)
OKLab	oklab(50.28% 0.0003 -0.1786)
OKLCH	oklch(50.28% 0.179 270.1)
XYZ	xyz(15.7995, 11.8809, 56.0930)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56C8 #C8B13F

analogous

#3F9BC8 #3F56C8 #6D3FC8

triadic

#3F56C8 #C83F56 #56C83F

tetradic

#3F56C8 #C83F9B #C8B13F #3FC86D

square

#3F56C8 #C83F9B #C8B13F #3FC86D

split-complementary

#3F56C8 #C86D3F #9BC83F

monochromatic

#1F2C6D #2D409D #3F56C8 #6F80D6 #9EAAE3

Accessibility & contrast

On white

6.22

#3F56C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3F56C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56C8

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56C8	#FFFFFF	#000000	##FFFFFF
##3F56C8	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CC

Deuteranopia (green-blind)

#005BC6

Tritanopia (blue-blind)

#007286

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f56c8;
/* rgb */ color: rgb(63, 86, 200);
/* oklch */ color: oklch(50.3% 0.179 270.1);

Tailwind

colors: {
  custom: {
    50: '#8485da',
    500: '#3f56c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f56c8;
$custom-light: #8485da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56c8",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 200
  },
  "hsl": {
    "h": 229.927,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50277,
    "c": 0.1786,
    "h": 270.1
  },
  "luminance": 0.11882
}

Semantic roles & 50–950 ramp

primary

#3F56C8

secondary

#D0C593

accent

#C649DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F56C8

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

Preview Lab → · Contrast checker → · Palette generator →