#4042BF#4042BF

#4042BF is a mid, vivid blue. Relative luminance 0.087; OKLCH L 46.0% C 0.191 H 275.2°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#4042BF
RGB	rgb(64, 66, 191)
HSL	hsl(239, 50%, 50%)
HSV	hsv(239, 66%, 75%)
CMYK	cmyk(66.5%, 65.4%, 0%, 25.1%)
CIE-LAB	lab(35.49, 38.69, -65.79)
CIE-LCH	lch(35.49, 76.32, 300.46°)
OKLab	oklab(45.98% 0.0173 -0.1898)
OKLCH	oklch(45.98% 0.191 275.2)
XYZ	xyz(13.4634, 8.7468, 50.2589)
Luminance	0.0875 (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

#4042BF #BFBD40

analogous

#4082BF #4042BF #7D40BF

triadic

#4042BF #BF4042 #42BF40

tetradic

#4042BF #BF4082 #BFBD40 #40BF7D

square

#4042BF #BF4082 #BFBD40 #40BF7D

split-complementary

#4042BF #BF7D40 #82BF40

monochromatic

#212263 #313291 #4042BF #6E6FCE #9C9DDE

Accessibility & contrast

On white

7.64

#4042BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#4042BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042BF

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042BF	#FFFFFF	#000000	##FFFFFF
##4042BF	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C3

Deuteranopia (green-blind)

#004EBD

Tritanopia (blue-blind)

#00637A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4042bf;
/* rgb */ color: rgb(64, 66, 191);
/* oklch */ color: oklch(46.0% 0.191 275.2);

Tailwind

colors: {
  custom: {
    50: '#8477d3',
    500: '#4042bf',
    950: '#000000',
  },
}

SCSS

$custom: #4042bf;
$custom-light: #8477d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4042bf",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 191
  },
  "hsl": {
    "h": 239.055,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.45983,
    "c": 0.19063,
    "h": 275.2
  },
  "luminance": 0.08748
}

Semantic roles & 50–950 ramp

primary

#4042BF

secondary

#CAC991

accent

#D74ED9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4042BF

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

Preview Lab → · Contrast checker → · Palette generator →