#3F5CC5#3F5CC5

#3F5CC5 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.2% C 0.167 H 268.3°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CC5
RGB	rgb(63, 92, 197)
HSL	hsl(227, 54%, 51%)
HSV	hsv(227, 68%, 77%)
CMYK	cmyk(68%, 53.3%, 0%, 22.7%)
CIE-LAB	lab(42.37, 24.20, -58.09)
CIE-LCH	lch(42.37, 62.93, 292.62°)
OKLab	oklab(51.22% -0.0049 -0.167)
OKLCH	oklch(51.22% 0.167 268.3)
XYZ	xyz(15.9516, 12.7407, 54.4310)
Luminance	0.1274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CC5 #C5A83F

analogous

#3F9FC5 #3F5CC5 #653FC5

triadic

#3F5CC5 #C53F5C #5CC53F

tetradic

#3F5CC5 #C53F9F #C5A83F #3FC565

square

#3F5CC5 #C53F9F #C5A83F #3FC565

split-complementary

#3F5CC5 #C5653F #9FC53F

monochromatic

#20306A #2E4599 #3F5CC5 #6E84D3 #9DACE1

Accessibility & contrast

On white

5.92

#3F5CC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3F5CC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CC5

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CC5	#FFFFFF	#000000	##FFFFFF
##3F5CC5	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#126AC9

Deuteranopia (green-blind)

#005EC3

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5cc5;
/* rgb */ color: rgb(63, 92, 197);
/* oklch */ color: oklch(51.2% 0.167 268.3);

Tailwind

colors: {
  custom: {
    50: '#8389d7',
    500: '#3f5cc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cc5;
$custom-light: #8389d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cc5",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 197
  },
  "hsl": {
    "h": 227.015,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.51217,
    "c": 0.16707,
    "h": 268.3
  },
  "luminance": 0.12742
}

Semantic roles & 50–950 ramp

primary

#3F5CC5

secondary

#CEC192

accent

#BD4BDD

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5CC5

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

Preview Lab → · Contrast checker → · Palette generator →