#3F4AD0#3F4AD0

#3F4AD0 is a mid, highly saturated blue. Relative luminance 0.105; OKLCH L 48.8% C 0.203 H 272.6°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F4AD0
RGB	rgb(63, 74, 208)
HSL	hsl(235, 61%, 53%)
HSV	hsv(235, 70%, 82%)
CMYK	cmyk(69.7%, 64.4%, 0%, 18.4%)
CIE-LAB	lab(38.74, 39.45, -70.37)
CIE-LCH	lch(38.74, 80.67, 299.28°)
OKLab	oklab(48.78% 0.0091 -0.2032)
OKLCH	oklch(48.78% 0.203 272.6)
XYZ	xyz(15.8800, 10.5068, 60.8534)
Luminance	0.1051 (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

#3F4AD0 #D0C53F

analogous

#3F92D0 #3F4AD0 #7C3FD0

triadic

#3F4AD0 #D03F4A #4AD03F

tetradic

#3F4AD0 #D03F92 #D0C53F #3FD07C

square

#3F4AD0 #D03F92 #D0C53F #3FD07C

split-complementary

#3F4AD0 #D07C3F #92D03F

monochromatic

#1D2477 #2933A9 #3F4AD0 #7078DC #A1A7E8

Accessibility & contrast

On white

6.77

#3F4AD0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3F4AD0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4AD0

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4AD0	#FFFFFF	#000000	##FFFFFF
##3F4AD0	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D4

Deuteranopia (green-blind)

#0055CD

Tritanopia (blue-blind)

#006D86

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4ad0;
/* rgb */ color: rgb(63, 74, 208);
/* oklch */ color: oklch(48.8% 0.203 272.6);

Tailwind

colors: {
  custom: {
    50: '#877ddf',
    500: '#3f4ad0',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ad0;
$custom-light: #877ddf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ad0",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 208
  },
  "hsl": {
    "h": 235.448,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.48783,
    "c": 0.20345,
    "h": 272.6
  },
  "luminance": 0.10508
}

Semantic roles & 50–950 ramp

primary

#3F4AD0

secondary

#D5D096

accent

#D844E4

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F4AD0

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

Preview Lab → · Contrast checker → · Palette generator →