#4042D1#4042D1

#4042D1 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.6% C 0.213 H 274.1°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#4042D1
RGB	rgb(64, 66, 209)
HSL	hsl(239, 61%, 54%)
HSV	hsv(239, 69%, 82%)
CMYK	cmyk(69.4%, 68.4%, 0%, 18%)
CIE-LAB	lab(37.09, 44.72, -73.64)
CIE-LCH	lch(37.09, 86.15, 301.27°)
OKLab	oklab(47.63% 0.0154 -0.2128)
OKLCH	oklch(47.63% 0.213 274.1)
XYZ	xyz(15.5674, 9.5884, 61.3396)
Luminance	0.0959 (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

#4042D1 #D1CF40

analogous

#408AD1 #4042D1 #8640D1

triadic

#4042D1 #D14042 #42D140

tetradic

#4042D1 #D1408A #D1CF40 #40D186

square

#4042D1 #D1408A #D1CF40 #40D186

split-complementary

#4042D1 #D18640 #8AD140

monochromatic

#1D1F79 #292BAB #4042D1 #7173DD #A3A4E9

Accessibility & contrast

On white

7.20

#4042D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#4042D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042D1

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042D1	#FFFFFF	#000000	##FFFFFF
##4042D1	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED5

Deuteranopia (green-blind)

#0050CE

Tritanopia (blue-blind)

#006984

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4042d1;
/* rgb */ color: rgb(64, 66, 209);
/* oklch */ color: oklch(47.6% 0.213 274.1);

Tailwind

colors: {
  custom: {
    50: '#8877e0',
    500: '#4042d1',
    950: '#000000',
  },
}

SCSS

$custom: #4042d1;
$custom-light: #8877e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4042d1",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 209
  },
  "hsl": {
    "h": 239.172,
    "s": 61.181,
    "l": 53.529
  },
  "oklch": {
    "l": 0.47633,
    "c": 0.21337,
    "h": 274.1
  },
  "luminance": 0.0959
}

Semantic roles & 50–950 ramp

primary

#4042D1

secondary

#D5D597

accent

#E244E4

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4042D1

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

Preview Lab → · Contrast checker → · Palette generator →