#3F5CC6#3F5CC6

#3F5CC6 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.168 H 268.3°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CC6
RGB	rgb(63, 92, 198)
HSL	hsl(227, 54%, 51%)
HSV	hsv(227, 68%, 78%)
CMYK	cmyk(68.2%, 53.5%, 0%, 22.4%)
CIE-LAB	lab(42.44, 24.56, -58.56)
CIE-LCH	lch(42.44, 63.50, 292.76°)
OKLab	oklab(51.29% -0.0049 -0.1684)
OKLCH	oklch(51.29% 0.168 268.3)
XYZ	xyz(16.0666, 12.7867, 55.0365)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CC6 #C6A93F

analogous

#3F9FC6 #3F5CC6 #653FC6

triadic

#3F5CC6 #C63F5C #5CC63F

tetradic

#3F5CC6 #C63F9F #C6A93F #3FC665

square

#3F5CC6 #C63F9F #C6A93F #3FC665

split-complementary

#3F5CC6 #C6653F #9FC63F

monochromatic

#20306B #2E459A #3F5CC6 #6E84D4 #9DACE2

Accessibility & contrast

On white

5.90

#3F5CC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3F5CC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CC6

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CC6	#FFFFFF	#000000	##FFFFFF
##3F5CC6	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E6BCA

Deuteranopia (green-blind)

#005EC4

Tritanopia (blue-blind)

#007588

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5cc6;
/* rgb */ color: rgb(63, 92, 198);
/* oklch */ color: oklch(51.3% 0.168 268.3);

Tailwind

colors: {
  custom: {
    50: '#8489d8',
    500: '#3f5cc6',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cc6;
$custom-light: #8489d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cc6",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 198
  },
  "hsl": {
    "h": 227.111,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.51292,
    "c": 0.16844,
    "h": 268.3
  },
  "luminance": 0.12788
}

Semantic roles & 50–950 ramp

primary

#3F5CC6

secondary

#CEC193

accent

#BE4ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F5CC6

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

Preview Lab → · Contrast checker → · Palette generator →