#4142BB#4142BB

#4142BB is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.185 H 275.8°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#4142BB
RGB	rgb(65, 66, 187)
HSL	hsl(240, 48%, 49%)
HSV	hsv(240, 65%, 73%)
CMYK	cmyk(65.2%, 64.7%, 0%, 26.7%)
CIE-LAB	lab(35.22, 37.48, -63.88)
CIE-LCH	lch(35.22, 74.07, 300.40°)
OKLab	oklab(45.69% 0.0189 -0.1842)
OKLCH	oklch(45.69% 0.185 275.8)
XYZ	xyz(13.0949, 8.6070, 47.9753)
Luminance	0.0861 (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

#4142BB #BBBA41

analogous

#417FBB #4142BB #7D41BB

triadic

#4142BB #BB4142 #42BB41

tetradic

#4142BB #BB417F #BBBA41 #41BB7D

square

#4142BB #BB417F #BBBA41 #41BB7D

split-complementary

#4142BB #BB7D41 #7FBB41

monochromatic

#212260 #31328E #4142BB #6D6ECC #9A9BDC

Accessibility & contrast

On white

7.72

#4142BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#4142BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4142BB

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4142BB	#FFFFFF	#000000	##FFFFFF
##4142BB	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004DB9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4142bb;
/* rgb */ color: rgb(65, 66, 187);
/* oklch */ color: oklch(45.7% 0.185 275.8);

Tailwind

colors: {
  custom: {
    50: '#8477d0',
    500: '#4142bb',
    950: '#000000',
  },
}

SCSS

$custom: #4142bb;
$custom-light: #8477d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4142bb",
  "rgb": {
    "r": 65,
    "g": 66,
    "b": 187
  },
  "hsl": {
    "h": 239.508,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45693,
    "c": 0.18519,
    "h": 275.8
  },
  "luminance": 0.08608
}

Semantic roles & 50–950 ramp

primary

#4142BB

secondary

#C8C890

accent

#D750D8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4142BB

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

Preview Lab → · Contrast checker → · Palette generator →