#4042DD#4042DD

#4042DD is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.8% C 0.228 H 273.5°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#4042DD
RGB	rgb(64, 66, 221)
HSL	hsl(239, 70%, 56%)
HSV	hsv(239, 71%, 87%)
CMYK	cmyk(71%, 70.1%, 0%, 13.3%)
CIE-LAB	lab(38.21, 48.66, -78.71)
CIE-LCH	lch(38.21, 92.53, 301.73°)
OKLab	oklab(48.77% 0.0137 -0.2276)
OKLCH	oklch(48.77% 0.228 273.5)
XYZ	xyz(17.1094, 10.2052, 69.4607)
Luminance	0.1021 (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

#4042DD #DDDB40

analogous

#4090DD #4042DD #8C40DD

triadic

#4042DD #DD4042 #42DD40

tetradic

#4042DD #DD4090 #DDDB40 #40DD8C

square

#4042DD #DD4090 #DDDB40 #40DD8C

split-complementary

#4042DD #DD8C40 #90DD40

monochromatic

#191A8A #2224BE #4042DD #7475E6 #A8A9EF

Accessibility & contrast

On white

6.90

#4042DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#4042DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4042DD

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042DD	#FFFFFF	#000000	##FFFFFF
##4042DD	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061E2

Deuteranopia (green-blind)

#0052DA

Tritanopia (blue-blind)

#006D8B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4042dd;
/* rgb */ color: rgb(64, 66, 221);
/* oklch */ color: oklch(48.8% 0.228 273.5);

Tailwind

colors: {
  custom: {
    50: '#8b78e9',
    500: '#4042dd',
    950: '#000000',
  },
}

SCSS

$custom: #4042dd;
$custom-light: #8b78e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4042dd",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 221
  },
  "hsl": {
    "h": 239.236,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.48772,
    "c": 0.22803,
    "h": 273.5
  },
  "luminance": 0.10207
}

Semantic roles & 50–950 ramp

primary

#4042DD

secondary

#DDDC9C

accent

#EA3BED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4042DD

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

Preview Lab → · Contrast checker → · Palette generator →