#4242D5#4242D5

#4242D5 is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.1% C 0.218 H 274.5°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#4242D5
RGB	rgb(66, 66, 213)
HSL	hsl(240, 64%, 55%)
HSV	hsv(240, 69%, 84%)
CMYK	cmyk(69%, 69%, 0%, 16.5%)
CIE-LAB	lab(37.58, 46.26, -75.13)
CIE-LCH	lch(37.58, 88.23, 301.62°)
OKLab	oklab(48.13% 0.0171 -0.2171)
OKLCH	oklch(48.13% 0.218 274.5)
XYZ	xyz(16.2012, 9.8572, 63.9867)
Luminance	0.0986 (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

#4242D5 #D5D542

analogous

#428CD5 #4242D5 #8C42D5

triadic

#4242D5 #D54242 #42D542

tetradic

#4242D5 #D5428C #D5D542 #42D58C

square

#4242D5 #D5428C #D5D542 #42D58C

split-complementary

#4242D5 #D58C42 #8CD542

monochromatic

#1C1C80 #2828B2 #4242D5 #7474E0 #A6A6EB

Accessibility & contrast

On white

7.07

#4242D5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#4242D5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242D5

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242D5	#FFFFFF	#000000	##FFFFFF
##4242D5	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD9

Deuteranopia (green-blind)

#0052D2

Tritanopia (blue-blind)

#006A86

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4242d5;
/* rgb */ color: rgb(66, 66, 213);
/* oklch */ color: oklch(48.1% 0.218 274.5);

Tailwind

colors: {
  custom: {
    50: '#8a77e3',
    500: '#4242d5',
    950: '#000000',
  },
}

SCSS

$custom: #4242d5;
$custom-light: #8a77e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4242d5",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 213
  },
  "hsl": {
    "h": 240,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.48131,
    "c": 0.21782,
    "h": 274.5
  },
  "luminance": 0.09859
}

Semantic roles & 50–950 ramp

primary

#4242D5

secondary

#D8D89A

accent

#E741E7

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #4242D5

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

Preview Lab → · Contrast checker → · Palette generator →