#3F4FC2#3F4FC2

#3F4FC2 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.5% C 0.179 H 271.9°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F4FC2
RGB	rgb(63, 79, 194)
HSL	hsl(233, 52%, 50%)
HSV	hsv(233, 68%, 76%)
CMYK	cmyk(67.5%, 59.3%, 0%, 23.9%)
CIE-LAB	lab(38.80, 31.46, -62.15)
CIE-LCH	lch(38.80, 69.65, 296.85°)
OKLab	oklab(48.47% 0.0059 -0.1791)
OKLCH	oklch(48.47% 0.179 271.9)
XYZ	xyz(14.5802, 10.5424, 52.2950)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4FC2 #C2B23F

analogous

#3F90C2 #3F4FC2 #703FC2

triadic

#3F4FC2 #C23F4F #4FC23F

tetradic

#3F4FC2 #C23F90 #C2B23F #3FC270

square

#3F4FC2 #C23F90 #C2B23F #3FC270

split-complementary

#3F4FC2 #C2703F #90C23F

monochromatic

#202966 #2F3C95 #3F4FC2 #6D7AD1 #9CA4E0

Accessibility & contrast

On white

6.76

#3F4FC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3F4FC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4FC2

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4FC2	#FFFFFF	#000000	##FFFFFF
##3F4FC2	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C6

Deuteranopia (green-blind)

#0056C0

Tritanopia (blue-blind)

#006C81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4fc2;
/* rgb */ color: rgb(63, 79, 194);
/* oklch */ color: oklch(48.5% 0.179 271.9);

Tailwind

colors: {
  custom: {
    50: '#8480d5',
    500: '#3f4fc2',
    950: '#000000',
  },
}

SCSS

$custom: #3f4fc2;
$custom-light: #8480d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4fc2",
  "rgb": {
    "r": 63,
    "g": 79,
    "b": 194
  },
  "hsl": {
    "h": 232.672,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48474,
    "c": 0.17918,
    "h": 271.9
  },
  "luminance": 0.10544
}

Semantic roles & 50–950 ramp

primary

#3F4FC2

secondary

#CCC491

accent

#CA4DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4FC2

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

Preview Lab → · Contrast checker → · Palette generator →