#3F41CF#3F41CF

#3F41CF is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.2% C 0.212 H 274.1°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#3F41CF
RGB	rgb(63, 65, 207)
HSL	hsl(239, 60%, 53%)
HSV	hsv(239, 70%, 81%)
CMYK	cmyk(69.6%, 68.6%, 0%, 18.8%)
CIE-LAB	lab(36.63, 44.53, -73.24)
CIE-LCH	lch(36.63, 85.71, 301.30°)
OKLab	oklab(47.23% 0.0151 -0.2117)
OKLCH	oklch(47.23% 0.212 274.1)
XYZ	xyz(15.1989, 9.3409, 60.0214)
Luminance	0.0934 (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

#3F41CF #CFCD3F

analogous

#3F89CF #3F41CF #853FCF

triadic

#3F41CF #CF3F41 #41CF3F

tetradic

#3F41CF #CF3F89 #CFCD3F #3FCF85

square

#3F41CF #CF3F89 #CFCD3F #3FCF85

split-complementary

#3F41CF #CF853F #89CF3F

monochromatic

#1E1F76 #2A2BA7 #3F41CF #7071DB #A1A2E7

Accessibility & contrast

On white

7.32

#3F41CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#3F41CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F41CF

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F41CF	#FFFFFF	#000000	##FFFFFF
##3F41CF	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD3

Deuteranopia (green-blind)

#004FCC

Tritanopia (blue-blind)

#006883

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f41cf;
/* rgb */ color: rgb(63, 65, 207);
/* oklch */ color: oklch(47.2% 0.212 274.1);

Tailwind

colors: {
  custom: {
    50: '#8776df',
    500: '#3f41cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f41cf;
$custom-light: #8776df;
$custom-dark: #000000;

JSON

{
  "hex": "#3f41cf",
  "rgb": {
    "r": 63,
    "g": 65,
    "b": 207
  },
  "hsl": {
    "h": 239.167,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.47228,
    "c": 0.21222,
    "h": 274.1
  },
  "luminance": 0.09342
}

Semantic roles & 50–950 ramp

primary

#3F41CF

secondary

#D4D396

accent

#E145E3

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F41CF

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

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