#3F4BC6#3F4BC6

#3F4BC6 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 48.1% C 0.189 H 272.7°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BC6
RGB	rgb(63, 75, 198)
HSL	hsl(235, 54%, 51%)
HSV	hsv(235, 68%, 78%)
CMYK	cmyk(68.2%, 62.1%, 0%, 22.4%)
CIE-LAB	lab(38.14, 35.38, -65.55)
CIE-LCH	lch(38.14, 74.49, 298.36°)
OKLab	oklab(48.08% 0.009 -0.1891)
OKLCH	oklch(48.08% 0.189 272.7)
XYZ	xyz(14.7556, 10.1647, 54.5995)
Luminance	0.1017 (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

#3F4BC6 #C6BA3F

analogous

#3F8EC6 #3F4BC6 #763FC6

triadic

#3F4BC6 #C63F4B #4BC63F

tetradic

#3F4BC6 #C63F8E #C6BA3F #3FC676

square

#3F4BC6 #C63F8E #C6BA3F #3FC676

split-complementary

#3F4BC6 #C6763F #8EC63F

monochromatic

#20266B #2E379A #3F4BC6 #6E77D4 #9DA3E2

Accessibility & contrast

On white

6.92

#3F4BC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3F4BC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BC6

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BC6	#FFFFFF	#000000	##FFFFFF
##3F4BC6	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060CA

Deuteranopia (green-blind)

#0054C4

Tritanopia (blue-blind)

#006A81

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f4bc6;
/* rgb */ color: rgb(63, 75, 198);
/* oklch */ color: oklch(48.1% 0.189 272.7);

Tailwind

colors: {
  custom: {
    50: '#857dd8',
    500: '#3f4bc6',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bc6;
$custom-light: #857dd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bc6",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 198
  },
  "hsl": {
    "h": 234.667,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.48084,
    "c": 0.18934,
    "h": 272.7
  },
  "luminance": 0.10166
}

Semantic roles & 50–950 ramp

primary

#3F4BC6

secondary

#CEC993

accent

#D04ADE

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3F4BC6

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

Preview Lab → · Contrast checker → · Palette generator →