#4142BC#4142BC

#4142BC is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.8% C 0.186 H 275.8°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#4142BC
RGB	rgb(65, 66, 188)
HSL	hsl(240, 49%, 50%)
HSV	hsv(240, 65%, 74%)
CMYK	cmyk(65.4%, 64.9%, 0%, 26.3%)
CIE-LAB	lab(35.30, 37.82, -64.33)
CIE-LCH	lch(35.30, 74.63, 300.45°)
OKLab	oklab(45.78% 0.0188 -0.1855)
OKLCH	oklch(45.78% 0.187 275.8)
XYZ	xyz(13.2023, 8.6500, 48.5411)
Luminance	0.0865 (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

#4142BC #BCBB41

analogous

#4180BC #4142BC #7D41BC

triadic

#4142BC #BC4142 #42BC41

tetradic

#4142BC #BC4180 #BCBB41 #41BC7D

square

#4142BC #BC4180 #BCBB41 #41BC7D

split-complementary

#4142BC #BC7D41 #80BC41

monochromatic

#222261 #31328F #4142BC #6E6ECD #9B9CDC

Accessibility & contrast

On white

7.69

#4142BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#4142BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4142BC

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4142BC	#FFFFFF	#000000	##FFFFFF
##4142BC	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C0

Deuteranopia (green-blind)

#004EBA

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4142bc;
/* rgb */ color: rgb(65, 66, 188);
/* oklch */ color: oklch(45.8% 0.186 275.8);

Tailwind

colors: {
  custom: {
    50: '#8477d1',
    500: '#4142bc',
    950: '#000000',
  },
}

SCSS

$custom: #4142bc;
$custom-light: #8477d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4142bc",
  "rgb": {
    "r": 65,
    "g": 66,
    "b": 188
  },
  "hsl": {
    "h": 239.512,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45782,
    "c": 0.1865,
    "h": 275.8
  },
  "luminance": 0.08651
}

Semantic roles & 50–950 ramp

primary

#4142BC

secondary

#C9C890

accent

#D750D8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4142BC

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

Preview Lab → · Contrast checker → · Palette generator →