#3F5DD5#3F5DD5

#3F5DD5 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.6% C 0.187 H 268.5°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DD5
RGB	rgb(63, 93, 213)
HSL	hsl(228, 64%, 54%)
HSV	hsv(228, 70%, 84%)
CMYK	cmyk(70.4%, 56.3%, 0%, 16.5%)
CIE-LAB	lab(43.78, 29.29, -65.01)
CIE-LCH	lch(43.78, 71.31, 294.26°)
OKLab	oklab(52.64% -0.0049 -0.1873)
OKLCH	oklch(52.64% 0.187 268.5)
XYZ	xyz(17.9704, 13.6877, 64.6328)
Luminance	0.1369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DD5 #D5B73F

analogous

#3FA8D5 #3F5DD5 #6C3FD5

triadic

#3F5DD5 #D53F5D #5DD53F

tetradic

#3F5DD5 #D53FA8 #D5B73F #3FD56C

square

#3F5DD5 #D53FA8 #D5B73F #3FD56C

split-complementary

#3F5DD5 #D56C3F #A8D53F

monochromatic

#1C2F7E #2742B0 #3F5DD5 #7187E0 #A3B2EB

Accessibility & contrast

On white

5.62

#3F5DD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3F5DD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DD5

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DD5	#FFFFFF	#000000	##FFFFFF
##3F5DD5	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD9

Deuteranopia (green-blind)

#0061D3

Tritanopia (blue-blind)

#007A90

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f5dd5;
/* rgb */ color: rgb(63, 93, 213);
/* oklch */ color: oklch(52.6% 0.187 268.5);

Tailwind

colors: {
  custom: {
    50: '#878ae3',
    500: '#3f5dd5',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dd5;
$custom-light: #878ae3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dd5",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 213
  },
  "hsl": {
    "h": 228,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52643,
    "c": 0.1874,
    "h": 268.5
  },
  "luminance": 0.1369
}

Semantic roles & 50–950 ramp

primary

#3F5DD5

secondary

#D8CB98

accent

#C641E7

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B15

muted

#7E7C84

Preview Lab

Preview with #3F5DD5

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

Preview Lab → · Contrast checker → · Palette generator →