#3F5FC4#3F5FC4

#3F5FC4 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.7% C 0.162 H 267.3°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FC4
RGB	rgb(63, 95, 196)
HSL	hsl(226, 53%, 51%)
HSV	hsv(226, 68%, 77%)
CMYK	cmyk(67.9%, 51.5%, 0%, 23.1%)
CIE-LAB	lab(43.10, 21.92, -56.33)
CIE-LCH	lch(43.10, 60.45, 291.26°)
OKLab	oklab(51.75% -0.0077 -0.1618)
OKLCH	oklch(51.75% 0.162 267.3)
XYZ	xyz(16.1025, 13.2251, 53.9180)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FC4 #C4A43F

analogous

#3FA1C4 #3F5FC4 #613FC4

triadic

#3F5FC4 #C43F5F #5FC43F

tetradic

#3F5FC4 #C43FA1 #C4A43F #3FC461

square

#3F5FC4 #C43FA1 #C4A43F #3FC461

split-complementary

#3F5FC4 #C4613F #A1C43F

monochromatic

#203268 #2E4897 #3F5FC4 #6E86D2 #9DADE1

Accessibility & contrast

On white

5.76

#3F5FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3F5FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FC4

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FC4	#FFFFFF	#000000	##FFFFFF
##3F5FC4	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#216CC8

Deuteranopia (green-blind)

#0060C2

Tritanopia (blue-blind)

#007788

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f5fc4;
/* rgb */ color: rgb(63, 95, 196);
/* oklch */ color: oklch(51.7% 0.162 267.3);

Tailwind

colors: {
  custom: {
    50: '#838bd6',
    500: '#3f5fc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fc4;
$custom-light: #838bd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fc4",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 196
  },
  "hsl": {
    "h": 225.564,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.51748,
    "c": 0.16195,
    "h": 267.3
  },
  "luminance": 0.13227
}

Semantic roles & 50–950 ramp

primary

#3F5FC4

secondary

#CDBF92

accent

#BA4BDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3F5FC4

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

Preview Lab → · Contrast checker → · Palette generator →