#3F56CC#3F56CC

#3F56CC is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.6% C 0.184 H 270.1°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F56CC
RGB	rgb(63, 86, 204)
HSL	hsl(230, 58%, 52%)
HSV	hsv(230, 69%, 80%)
CMYK	cmyk(69.1%, 57.8%, 0%, 20%)
CIE-LAB	lab(41.33, 30.54, -63.83)
CIE-LCH	lch(41.33, 70.76, 295.57°)
OKLab	oklab(50.6% 0.0004 -0.1839)
OKLCH	oklch(50.6% 0.184 270.1)
XYZ	xyz(16.2731, 12.0704, 58.5873)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56CC #CCB53F

analogous

#3F9CCC #3F56CC #6F3FCC

triadic

#3F56CC #CC3F56 #56CC3F

tetradic

#3F56CC #CC3F9C #CCB53F #3FCC6F

square

#3F56CC #CC3F9C #CCB53F #3FCC6F

split-complementary

#3F56CC #CC6F3F #9CCC3F

monochromatic

#1E2C72 #2B3FA3 #3F56CC #6F81D9 #A0ABE6

Accessibility & contrast

On white

6.15

#3F56CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3F56CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56CC

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56CC	#FFFFFF	#000000	##FFFFFF
##3F56CC	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D0

Deuteranopia (green-blind)

#005BCA

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f56cc;
/* rgb */ color: rgb(63, 86, 204);
/* oklch */ color: oklch(50.6% 0.184 270.1);

Tailwind

colors: {
  custom: {
    50: '#8585dc',
    500: '#3f56cc',
    950: '#000000',
  },
}

SCSS

$custom: #3f56cc;
$custom-light: #8585dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56cc",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 204
  },
  "hsl": {
    "h": 230.213,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.50596,
    "c": 0.18395,
    "h": 270.1
  },
  "luminance": 0.12072
}

Semantic roles & 50–950 ramp

primary

#3F56CC

secondary

#D2C895

accent

#C847E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F56CC

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

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