#3F4EBC#3F4EBC

#3F4EBC is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.8% C 0.172 H 272.2°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EBC
RGB	rgb(63, 78, 188)
HSL	hsl(233, 50%, 49%)
HSV	hsv(233, 66%, 74%)
CMYK	cmyk(66.5%, 58.5%, 0%, 26.3%)
CIE-LAB	lab(38.08, 29.98, -59.80)
CIE-LCH	lch(38.08, 66.90, 296.63°)
OKLab	oklab(47.8% 0.0067 -0.1722)
OKLCH	oklch(47.8% 0.172 272.2)
XYZ	xyz(13.8483, 10.1351, 48.7937)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EBC #BCAD3F

analogous

#3F8DBC #3F4EBC #6F3FBC

triadic

#3F4EBC #BC3F4E #4EBC3F

tetradic

#3F4EBC #BC3F8D #BCAD3F #3FBC6F

square

#3F4EBC #BC3F8D #BCAD3F #3FBC6F

split-complementary

#3F4EBC #BC6F3F #8DBC3F

monochromatic

#202860 #303B8E #3F4EBC #6B77CD #99A1DD

Accessibility & contrast

On white

6.94

#3F4EBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3F4EBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4EBC

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EBC	#FFFFFF	#000000	##FFFFFF
##3F4EBC	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC0

Deuteranopia (green-blind)

#0054BA

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f4ebc;
/* rgb */ color: rgb(63, 78, 188);
/* oklch */ color: oklch(47.8% 0.172 272.2);

Tailwind

colors: {
  custom: {
    50: '#827fd1',
    500: '#3f4ebc',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ebc;
$custom-light: #827fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ebc",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 188
  },
  "hsl": {
    "h": 232.8,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47798,
    "c": 0.17233,
    "h": 272.2
  },
  "luminance": 0.10136
}

Semantic roles & 50–950 ramp

primary

#3F4EBC

secondary

#C9C28E

accent

#C94ED9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #3F4EBC

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

Preview Lab → · Contrast checker → · Palette generator →