#3F5FCD#3F5FCD

#3F5FCD is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.4% C 0.174 H 267.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FCD
RGB	rgb(63, 95, 205)
HSL	hsl(226, 59%, 53%)
HSV	hsv(226, 69%, 80%)
CMYK	cmyk(69.3%, 53.7%, 0%, 19.6%)
CIE-LAB	lab(43.72, 25.16, -60.52)
CIE-LCH	lch(43.72, 65.54, 292.57°)
OKLab	oklab(52.42% -0.0069 -0.1741)
OKLCH	oklch(52.42% 0.174 267.7)
XYZ	xyz(17.1577, 13.6472, 59.4757)
Luminance	0.1365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FCD #CDAD3F

analogous

#3FA6CD #3F5FCD #663FCD

triadic

#3F5FCD #CD3F5F #5FCD3F

tetradic

#3F5FCD #CD3FA6 #CDAD3F #3FCD66

square

#3F5FCD #CD3FA6 #CDAD3F #3FCD66

split-complementary

#3F5FCD #CD663F #A6CD3F

monochromatic

#1E3174 #2B46A4 #3F5FCD #7087DA #A0B0E6

Accessibility & contrast

On white

5.63

#3F5FCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#3F5FCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FCD

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FCD	#FFFFFF	#000000	##FFFFFF
##3F5FCD	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A6ED1

Deuteranopia (green-blind)

#0061CB

Tritanopia (blue-blind)

#00798D

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5fcd;
/* rgb */ color: rgb(63, 95, 205);
/* oklch */ color: oklch(52.4% 0.174 267.7);

Tailwind

colors: {
  custom: {
    50: '#858cdd',
    500: '#3f5fcd',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fcd;
$custom-light: #858cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fcd",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 205
  },
  "hsl": {
    "h": 226.479,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.52416,
    "c": 0.17423,
    "h": 267.7
  },
  "luminance": 0.13649
}

Semantic roles & 50–950 ramp

primary

#3F5FCD

secondary

#D3C595

accent

#BF46E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F5FCD

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

Preview Lab → · Contrast checker → · Palette generator →