#3F56D2#3F56D2

#3F56D2 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.1% C 0.192 H 270.1°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F56D2
RGB	rgb(63, 86, 210)
HSL	hsl(231, 62%, 54%)
HSV	hsv(231, 70%, 82%)
CMYK	cmyk(70%, 59%, 0%, 17.6%)
CIE-LAB	lab(41.79, 32.66, -66.54)
CIE-LCH	lch(41.79, 74.12, 296.15°)
OKLab	oklab(51.08% 0.0004 -0.1919)
OKLCH	oklch(51.08% 0.192 270.1)
XYZ	xyz(17.0066, 12.3638, 62.4505)
Luminance	0.1236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56D2 #D2BB3F

analogous

#3F9FD2 #3F56D2 #713FD2

triadic

#3F56D2 #D23F56 #56D23F

tetradic

#3F56D2 #D23F9F #D2BB3F #3FD271

square

#3F56D2 #D23F9F #D2BB3F #3FD271

split-complementary

#3F56D2 #D2713F #9FD23F

monochromatic

#1D2B7A #283DAC #3F56D2 #7182DE #A2ADE9

Accessibility & contrast

On white

6.05

#3F56D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#3F56D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56D2

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56D2	#FFFFFF	#000000	##FFFFFF
##3F56D2	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD6

Deuteranopia (green-blind)

#005CD0

Tritanopia (blue-blind)

#00758C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f56d2;
/* rgb */ color: rgb(63, 86, 210);
/* oklch */ color: oklch(51.1% 0.192 270.1);

Tailwind

colors: {
  custom: {
    50: '#8685e1',
    500: '#3f56d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f56d2;
$custom-light: #8685e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56d2",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 210
  },
  "hsl": {
    "h": 230.612,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51084,
    "c": 0.1919,
    "h": 270.1
  },
  "luminance": 0.12365
}

Semantic roles & 50–950 ramp

primary

#3F56D2

secondary

#D6CC97

accent

#CC43E5

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #3F56D2

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

Preview Lab → · Contrast checker → · Palette generator →