#3F46C4#3F46C4

#3F46C4 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 47.0% C 0.193 H 273.8°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F46C4
RGB	rgb(63, 70, 196)
HSL	hsl(237, 53%, 51%)
HSV	hsv(237, 68%, 77%)
CMYK	cmyk(67.9%, 64.3%, 0%, 23.1%)
CIE-LAB	lab(36.78, 37.80, -66.60)
CIE-LCH	lch(36.78, 76.58, 299.58°)
OKLab	oklab(47.04% 0.0128 -0.1922)
OKLCH	oklch(47.04% 0.193 273.8)
XYZ	xyz(14.2005, 9.4213, 53.2840)
Luminance	0.0942 (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

#3F46C4 #C4BD3F

analogous

#3F88C4 #3F46C4 #7A3FC4

triadic

#3F46C4 #C43F46 #46C43F

tetradic

#3F46C4 #C43F88 #C4BD3F #3FC47A

square

#3F46C4 #C43F88 #C4BD3F #3FC47A

split-complementary

#3F46C4 #C47A3F #88C43F

monochromatic

#202468 #2E3497 #3F46C4 #6E73D2 #9DA0E1

Accessibility & contrast

On white

7.28

#3F46C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3F46C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46C4

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46C4	#FFFFFF	#000000	##FFFFFF
##3F46C4	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC8

Deuteranopia (green-blind)

#0051C2

Tritanopia (blue-blind)

#00677E

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f46c4;
/* rgb */ color: rgb(63, 70, 196);
/* oklch */ color: oklch(47.0% 0.193 273.8);

Tailwind

colors: {
  custom: {
    50: '#857ad7',
    500: '#3f46c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f46c4;
$custom-light: #857ad7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46c4",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 196
  },
  "hsl": {
    "h": 236.842,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.4704,
    "c": 0.19266,
    "h": 273.8
  },
  "luminance": 0.09423
}

Semantic roles & 50–950 ramp

primary

#3F46C4

secondary

#CDCA92

accent

#D54BDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3F46C4

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

Preview Lab → · Contrast checker → · Palette generator →