#3F5DD4#3F5DD4

#3F5DD4 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.186 H 268.5°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DD4
RGB	rgb(63, 93, 212)
HSL	hsl(228, 63%, 54%)
HSV	hsv(228, 70%, 83%)
CMYK	cmyk(70.3%, 56.1%, 0%, 16.9%)
CIE-LAB	lab(43.71, 28.94, -64.56)
CIE-LCH	lch(43.71, 70.75, 294.14°)
OKLab	oklab(52.56% -0.0049 -0.186)
OKLCH	oklch(52.56% 0.186 268.5)
XYZ	xyz(17.8438, 13.6371, 63.9664)
Luminance	0.1364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DD4 #D4B63F

analogous

#3FA8D4 #3F5DD4 #6C3FD4

triadic

#3F5DD4 #D43F5D #5DD43F

tetradic

#3F5DD4 #D43FA8 #D4B63F #3FD46C

square

#3F5DD4 #D43FA8 #D4B63F #3FD46C

split-complementary

#3F5DD4 #D46C3F #A8D43F

monochromatic

#1C2F7D #2742AF #3F5DD4 #7187DF #A3B1EA

Accessibility & contrast

On white

5.63

#3F5DD4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#3F5DD4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DD4

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DD4	#FFFFFF	#000000	##FFFFFF
##3F5DD4	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)

#006ED8

Deuteranopia (green-blind)

#0061D2

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5dd4;
/* rgb */ color: rgb(63, 93, 212);
/* oklch */ color: oklch(52.6% 0.186 268.5);

Tailwind

colors: {
  custom: {
    50: '#868ae2',
    500: '#3f5dd4',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dd4;
$custom-light: #868ae2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dd4",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 212
  },
  "hsl": {
    "h": 227.919,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.52564,
    "c": 0.18607,
    "h": 268.5
  },
  "luminance": 0.13639
}

Semantic roles & 50–950 ramp

primary

#3F5DD4

secondary

#D7CA98

accent

#C541E6

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B15

muted

#7E7C84

Preview Lab

Preview with #3F5DD4

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

Preview Lab → · Contrast checker → · Palette generator →