#3F4CE0#3F4CE0

#3F4CE0 is a mid, highly saturated blue. Relative luminance 0.116; OKLCH L 50.6% C 0.221 H 271.7°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CE0
RGB	rgb(63, 76, 224)
HSL	hsl(235, 72%, 56%)
HSV	hsv(235, 72%, 88%)
CMYK	cmyk(71.9%, 66.1%, 0%, 12.2%)
CIE-LAB	lab(40.58, 43.69, -76.52)
CIE-LCH	lch(40.58, 88.11, 299.72°)
OKLab	oklab(50.56% 0.0066 -0.2212)
OKLCH	oklch(50.56% 0.221 271.7)
XYZ	xyz(18.0843, 11.6056, 71.7936)
Luminance	0.1161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4CE0 #E0D33F

analogous

#3F9DE0 #3F4CE0 #833FE0

triadic

#3F4CE0 #E03F4C #4CE03F

tetradic

#3F4CE0 #E03F9D #E0D33F #3FE083

square

#3F4CE0 #E03F9D #E0D33F #3FE083

split-complementary

#3F4CE0 #E0833F #9DE03F

monochromatic

#17208E #1F2DC2 #3F4CE0 #747DE9 #A8AEF1

Accessibility & contrast

On white

6.32

#3F4CE0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#3F4CE0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4CE0

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CE0	#FFFFFF	#000000	##FFFFFF
##3F4CE0	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067E5

Deuteranopia (green-blind)

#0058DD

Tritanopia (blue-blind)

#00748F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3f4ce0;
/* rgb */ color: rgb(63, 76, 224);
/* oklch */ color: oklch(50.6% 0.221 271.7);

Tailwind

colors: {
  custom: {
    50: '#8a7eeb',
    500: '#3f4ce0',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ce0;
$custom-light: #8a7eeb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ce0",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 224
  },
  "hsl": {
    "h": 235.155,
    "s": 72.197,
    "l": 56.275
  },
  "oklch": {
    "l": 0.50555,
    "c": 0.22134,
    "h": 271.7
  },
  "luminance": 0.11607
}

Semantic roles & 50–950 ramp

primary

#3F4CE0

secondary

#DFD99C

accent

#E039EF

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #3F4CE0

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

Preview Lab → · Contrast checker → · Palette generator →