#3F5CD4#3F5CD4

#3F5CD4 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.4% C 0.187 H 268.7°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CD4
RGB	rgb(63, 92, 212)
HSL	hsl(228, 63%, 54%)
HSV	hsv(228, 70%, 83%)
CMYK	cmyk(70.3%, 56.6%, 0%, 16.9%)
CIE-LAB	lab(43.45, 29.57, -64.98)
CIE-LCH	lch(43.45, 71.39, 294.47°)
OKLab	oklab(52.37% -0.0041 -0.1872)
OKLCH	oklch(52.37% 0.187 268.7)
XYZ	xyz(17.7566, 13.4627, 63.9374)
Luminance	0.1346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CD4 #D4B73F

analogous

#3FA7D4 #3F5CD4 #6D3FD4

triadic

#3F5CD4 #D43F5C #5CD43F

tetradic

#3F5CD4 #D43FA7 #D4B73F #3FD46D

square

#3F5CD4 #D43FA7 #D4B73F #3FD46D

split-complementary

#3F5CD4 #D46D3F #A7D43F

monochromatic

#1C2F7D #2742AF #3F5CD4 #7186DF #A3B1EA

Accessibility & contrast

On white

5.69

#3F5CD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3F5CD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CD4

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CD4	#FFFFFF	#000000	##FFFFFF
##3F5CD4	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED8

Deuteranopia (green-blind)

#0060D2

Tritanopia (blue-blind)

#00798F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5cd4;
/* rgb */ color: rgb(63, 92, 212);
/* oklch */ color: oklch(52.4% 0.187 268.7);

Tailwind

colors: {
  custom: {
    50: '#8689e2',
    500: '#3f5cd4',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cd4;
$custom-light: #8689e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cd4",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 212
  },
  "hsl": {
    "h": 228.322,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.52373,
    "c": 0.18729,
    "h": 268.7
  },
  "luminance": 0.13465
}

Semantic roles & 50–950 ramp

primary

#3F5CD4

secondary

#D7CB98

accent

#C641E6

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B15

muted

#7E7C84

Preview Lab

Preview with #3F5CD4

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

Preview Lab → · Contrast checker → · Palette generator →