#3F4FBD#3F4FBD

#3F4FBD is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.1% C 0.172 H 272.0°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F4FBD
RGB	rgb(63, 79, 189)
HSL	hsl(232, 50%, 49%)
HSV	hsv(232, 67%, 74%)
CMYK	cmyk(66.7%, 58.2%, 0%, 25.9%)
CIE-LAB	lab(38.41, 29.69, -59.85)
CIE-LCH	lch(38.41, 66.81, 296.39°)
OKLab	oklab(48.07% 0.0059 -0.1723)
OKLCH	oklch(48.07% 0.172 272)
XYZ	xyz(14.0281, 10.3216, 49.3872)
Luminance	0.1032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4FBD #BDAD3F

analogous

#3F8EBD #3F4FBD #6E3FBD

triadic

#3F4FBD #BD3F4F #4FBD3F

tetradic

#3F4FBD #BD3F8E #BDAD3F #3FBD6E

square

#3F4FBD #BD3F8E #BDAD3F #3FBD6E

split-complementary

#3F4FBD #BD6E3F #8EBD3F

monochromatic

#202961 #303C8F #3F4FBD #6B78CE #99A2DD

Accessibility & contrast

On white

6.85

#3F4FBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3F4FBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4FBD

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4FBD	#FFFFFF	#000000	##FFFFFF
##3F4FBD	1.00	6.85	3.06	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C1

Deuteranopia (green-blind)

#0055BB

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f4fbd;
/* rgb */ color: rgb(63, 79, 189);
/* oklch */ color: oklch(48.1% 0.172 272.0);

Tailwind

colors: {
  custom: {
    50: '#8380d2',
    500: '#3f4fbd',
    950: '#000000',
  },
}

SCSS

$custom: #3f4fbd;
$custom-light: #8380d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4fbd",
  "rgb": {
    "r": 63,
    "g": 79,
    "b": 189
  },
  "hsl": {
    "h": 232.381,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48067,
    "c": 0.17244,
    "h": 272
  },
  "luminance": 0.10323
}

Semantic roles & 50–950 ramp

primary

#3F4FBD

secondary

#C9C28F

accent

#C84EDA

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4FBD

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

Preview Lab → · Contrast checker → · Palette generator →