#3F5DC3#3F5DC3

#3F5DC3 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.3% C 0.163 H 267.9°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DC3
RGB	rgb(63, 93, 195)
HSL	hsl(226, 52%, 51%)
HSV	hsv(226, 68%, 76%)
CMYK	cmyk(67.7%, 52.3%, 0%, 23.5%)
CIE-LAB	lab(42.50, 22.84, -56.73)
CIE-LCH	lch(42.50, 61.15, 291.94°)
OKLab	oklab(51.27% -0.006 -0.163)
OKLCH	oklch(51.27% 0.163 267.9)
XYZ	xyz(15.8112, 12.8241, 53.2612)
Luminance	0.1283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DC3 #C3A53F

analogous

#3F9FC3 #3F5DC3 #633FC3

triadic

#3F5DC3 #C33F5D #5DC33F

tetradic

#3F5DC3 #C33F9F #C3A53F #3FC363

square

#3F5DC3 #C33F9F #C3A53F #3FC363

split-complementary

#3F5DC3 #C3633F #9FC33F

monochromatic

#203067 #2F4696 #3F5DC3 #6E84D2 #9CACE0

Accessibility & contrast

On white

5.89

#3F5DC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3F5DC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DC3

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DC3	#FFFFFF	#000000	##FFFFFF
##3F5DC3	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B6BC7

Deuteranopia (green-blind)

#005FC1

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5dc3;
/* rgb */ color: rgb(63, 93, 195);
/* oklch */ color: oklch(51.3% 0.163 267.9);

Tailwind

colors: {
  custom: {
    50: '#838ad6',
    500: '#3f5dc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dc3;
$custom-light: #838ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dc3",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 195
  },
  "hsl": {
    "h": 226.364,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.51269,
    "c": 0.16308,
    "h": 267.9
  },
  "luminance": 0.12826
}

Semantic roles & 50–950 ramp

primary

#3F5DC3

secondary

#CCBF92

accent

#BB4CDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5DC3

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

Preview Lab → · Contrast checker → · Palette generator →