#3F4EC3#3F4EC3

#3F4EC3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.4% C 0.182 H 272.1°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EC3
RGB	rgb(63, 78, 195)
HSL	hsl(233, 52%, 51%)
HSV	hsv(233, 68%, 76%)
CMYK	cmyk(67.7%, 60%, 0%, 23.5%)
CIE-LAB	lab(38.63, 32.44, -63.01)
CIE-LCH	lch(38.63, 70.87, 297.24°)
OKLab	oklab(48.37% 0.0067 -0.1816)
OKLCH	oklch(48.37% 0.182 272.1)
XYZ	xyz(14.6213, 10.4443, 52.8646)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EC3 #C3B43F

analogous

#3F90C3 #3F4EC3 #723FC3

triadic

#3F4EC3 #C33F4E #4EC33F

tetradic

#3F4EC3 #C33F90 #C3B43F #3FC372

square

#3F4EC3 #C33F90 #C3B43F #3FC372

split-complementary

#3F4EC3 #C3723F #90C33F

monochromatic

#202867 #2F3B96 #3F4EC3 #6E79D2 #9CA4E0

Accessibility & contrast

On white

6.80

#3F4EC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3F4EC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4EC3

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EC3	#FFFFFF	#000000	##FFFFFF
##3F4EC3	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C7

Deuteranopia (green-blind)

#0055C1

Tritanopia (blue-blind)

#006B81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4ec3;
/* rgb */ color: rgb(63, 78, 195);
/* oklch */ color: oklch(48.4% 0.182 272.1);

Tailwind

colors: {
  custom: {
    50: '#847fd6',
    500: '#3f4ec3',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ec3;
$custom-light: #847fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ec3",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 195
  },
  "hsl": {
    "h": 233.182,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48372,
    "c": 0.18174,
    "h": 272.1
  },
  "luminance": 0.10446
}

Semantic roles & 50–950 ramp

primary

#3F4EC3

secondary

#CCC692

accent

#CB4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4EC3

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

Preview Lab → · Contrast checker → · Palette generator →