#3F53C4#3F53C4

#3F53C4 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.4% C 0.177 H 270.9°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3F53C4
RGB	rgb(63, 83, 196)
HSL	hsl(231, 53%, 51%)
HSV	hsv(231, 68%, 77%)
CMYK	cmyk(67.9%, 57.7%, 0%, 23.1%)
CIE-LAB	lab(39.96, 29.61, -61.42)
CIE-LCH	lch(39.96, 68.18, 295.74°)
OKLab	oklab(49.39% 0.0027 -0.1769)
OKLCH	oklch(49.39% 0.177 270.9)
XYZ	xyz(15.1036, 11.2274, 53.5850)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F53C4 #C4B03F

analogous

#3F96C4 #3F53C4 #6D3FC4

triadic

#3F53C4 #C43F53 #53C43F

tetradic

#3F53C4 #C43F96 #C4B03F #3FC46D

square

#3F53C4 #C43F96 #C4B03F #3FC46D

split-complementary

#3F53C4 #C46D3F #96C43F

monochromatic

#202B68 #2E3E97 #3F53C4 #6E7DD2 #9DA7E1

Accessibility & contrast

On white

6.47

#3F53C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3F53C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F53C4

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F53C4	#FFFFFF	#000000	##FFFFFF
##3F53C4	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C8

Deuteranopia (green-blind)

#0058C2

Tritanopia (blue-blind)

#006F83

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f53c4;
/* rgb */ color: rgb(63, 83, 196);
/* oklch */ color: oklch(49.4% 0.177 270.9);

Tailwind

colors: {
  custom: {
    50: '#8483d7',
    500: '#3f53c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f53c4;
$custom-light: #8483d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f53c4",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 196
  },
  "hsl": {
    "h": 230.977,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.49387,
    "c": 0.17692,
    "h": 270.9
  },
  "luminance": 0.11229
}

Semantic roles & 50–950 ramp

primary

#3F53C4

secondary

#CDC492

accent

#C74BDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F53C4

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

Preview Lab → · Contrast checker → · Palette generator →