#3F46D0#3F46D0

#3F46D0 is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.1% C 0.208 H 273.2°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F46D0
RGB	rgb(63, 70, 208)
HSL	hsl(237, 61%, 53%)
HSV	hsv(237, 70%, 82%)
CMYK	cmyk(69.7%, 66.3%, 0%, 18.4%)
CIE-LAB	lab(37.82, 41.88, -71.86)
CIE-LCH	lch(37.82, 83.18, 300.23°)
OKLab	oklab(48.12% 0.0118 -0.2076)
OKLCH	oklch(48.12% 0.208 273.2)
XYZ	xyz(15.6214, 9.9896, 60.7672)
Luminance	0.0999 (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

#3F46D0 #D0C93F

analogous

#3F8FD0 #3F46D0 #803FD0

triadic

#3F46D0 #D03F46 #46D03F

tetradic

#3F46D0 #D03F8F #D0C93F #3FD080

square

#3F46D0 #D03F8F #D0C93F #3FD080

split-complementary

#3F46D0 #D0803F #8FD03F

monochromatic

#1D2277 #292FA9 #3F46D0 #7075DC #A1A5E8

Accessibility & contrast

On white

7.00

#3F46D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#3F46D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F46D0

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46D0	#FFFFFF	#000000	##FFFFFF
##3F46D0	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D4

Deuteranopia (green-blind)

#0052CD

Tritanopia (blue-blind)

#006B85

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f46d0;
/* rgb */ color: rgb(63, 70, 208);
/* oklch */ color: oklch(48.1% 0.208 273.2);

Tailwind

colors: {
  custom: {
    50: '#877ae0',
    500: '#3f46d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f46d0;
$custom-light: #877ae0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46d0",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 208
  },
  "hsl": {
    "h": 237.103,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.48118,
    "c": 0.20798,
    "h": 273.2
  },
  "luminance": 0.09991
}

Semantic roles & 50–950 ramp

primary

#3F46D0

secondary

#D5D296

accent

#DC44E4

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F46D0

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

Preview Lab → · Contrast checker → · Palette generator →