#3F4BCD#3F4BCD

#3F4BCD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.7% C 0.198 H 272.5°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BCD
RGB	rgb(63, 75, 205)
HSL	hsl(235, 59%, 53%)
HSV	hsv(235, 69%, 80%)
CMYK	cmyk(69.3%, 63.4%, 0%, 19.6%)
CIE-LAB	lab(38.72, 37.80, -68.67)
CIE-LCH	lch(38.72, 78.38, 298.83°)
OKLab	oklab(48.69% 0.0086 -0.1983)
OKLCH	oklch(48.69% 0.198 272.5)
XYZ	xyz(15.5817, 10.4952, 58.9504)
Luminance	0.1050 (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

#3F4BCD #CDC13F

analogous

#3F92CD #3F4BCD #7A3FCD

triadic

#3F4BCD #CD3F4B #4BCD3F

tetradic

#3F4BCD #CD3F92 #CDC13F #3FCD7A

square

#3F4BCD #CD3F92 #CDC13F #3FCD7A

split-complementary

#3F4BCD #CD7A3F #92CD3F

monochromatic

#1E2574 #2B35A4 #3F4BCD #7079DA #A0A6E6

Accessibility & contrast

On white

6.78

#3F4BCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3F4BCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BCD

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BCD	#FFFFFF	#000000	##FFFFFF
##3F4BCD	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062D1

Deuteranopia (green-blind)

#0055CB

Tritanopia (blue-blind)

#006D85

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4bcd;
/* rgb */ color: rgb(63, 75, 205);
/* oklch */ color: oklch(48.7% 0.198 272.5);

Tailwind

colors: {
  custom: {
    50: '#867ddd',
    500: '#3f4bcd',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bcd;
$custom-light: #867ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bcd",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 205
  },
  "hsl": {
    "h": 234.93,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.4869,
    "c": 0.19845,
    "h": 272.5
  },
  "luminance": 0.10497
}

Semantic roles & 50–950 ramp

primary

#3F4BCD

secondary

#D3CE95

accent

#D546E2

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F4BCD

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

Preview Lab → · Contrast checker → · Palette generator →