#3F4BD0#3F4BD0

#3F4BD0 is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 49.0% C 0.202 H 272.4°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BD0
RGB	rgb(63, 75, 208)
HSL	hsl(235, 61%, 53%)
HSV	hsv(235, 70%, 82%)
CMYK	cmyk(69.7%, 63.9%, 0%, 18.4%)
CIE-LAB	lab(38.97, 38.83, -69.99)
CIE-LCH	lch(38.97, 80.04, 299.03°)
OKLab	oklab(48.95% 0.0084 -0.2021)
OKLCH	oklch(48.95% 0.202 272.4)
XYZ	xyz(15.9473, 10.6414, 60.8758)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4BD0 #D0C43F

analogous

#3F94D0 #3F4BD0 #7B3FD0

triadic

#3F4BD0 #D03F4B #4BD03F

tetradic

#3F4BD0 #D03F94 #D0C43F #3FD07B

square

#3F4BD0 #D03F94 #D0C43F #3FD07B

split-complementary

#3F4BD0 #D07B3F #94D03F

monochromatic

#1D2577 #2934A9 #3F4BD0 #7079DC #A1A7E8

Accessibility & contrast

On white

6.71

#3F4BD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3F4BD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BD0

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BD0	#FFFFFF	#000000	##FFFFFF
##3F4BD0	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063D4

Deuteranopia (green-blind)

#0055CD

Tritanopia (blue-blind)

#006E87

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f4bd0;
/* rgb */ color: rgb(63, 75, 208);
/* oklch */ color: oklch(49.0% 0.202 272.4);

Tailwind

colors: {
  custom: {
    50: '#877ddf',
    500: '#3f4bd0',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bd0;
$custom-light: #877ddf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bd0",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 208
  },
  "hsl": {
    "h": 235.034,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.48954,
    "c": 0.2023,
    "h": 272.4
  },
  "luminance": 0.10643
}

Semantic roles & 50–950 ramp

primary

#3F4BD0

secondary

#D5CF96

accent

#D744E4

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F4BD0

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

Preview Lab → · Contrast checker → · Palette generator →