#3F46C6#3F46C6

#3F46C6 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 47.2% C 0.195 H 273.7°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#3F46C6
RGB	rgb(63, 70, 198)
HSL	hsl(237, 54%, 51%)
HSV	hsv(237, 68%, 78%)
CMYK	cmyk(68.2%, 64.6%, 0%, 22.4%)
CIE-LAB	lab(36.95, 38.48, -67.49)
CIE-LCH	lch(36.95, 77.69, 299.69°)
OKLab	oklab(47.22% 0.0127 -0.1948)
OKLCH	oklch(47.22% 0.195 273.7)
XYZ	xyz(14.4297, 9.5130, 54.4909)
Luminance	0.0951 (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

#3F46C6 #C6BF3F

analogous

#3F89C6 #3F46C6 #7B3FC6

triadic

#3F46C6 #C63F46 #46C63F

tetradic

#3F46C6 #C63F89 #C6BF3F #3FC67B

square

#3F46C6 #C63F89 #C6BF3F #3FC67B

split-complementary

#3F46C6 #C67B3F #89C63F

monochromatic

#20246B #2E339A #3F46C6 #6E73D4 #9DA1E2

Accessibility & contrast

On white

7.23

#3F46C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3F46C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46C6

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46C6	#FFFFFF	#000000	##FFFFFF
##3F46C6	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCA

Deuteranopia (green-blind)

#0051C4

Tritanopia (blue-blind)

#006780

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f46c6;
/* rgb */ color: rgb(63, 70, 198);
/* oklch */ color: oklch(47.2% 0.195 273.7);

Tailwind

colors: {
  custom: {
    50: '#857ad8',
    500: '#3f46c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f46c6;
$custom-light: #857ad8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46c6",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 198
  },
  "hsl": {
    "h": 236.889,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.47217,
    "c": 0.19524,
    "h": 273.7
  },
  "luminance": 0.09514
}

Semantic roles & 50–950 ramp

primary

#3F46C6

secondary

#CECB93

accent

#D64ADE

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3F46C6

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

Preview Lab → · Contrast checker → · Palette generator →