#4242D0#4242D0

#4242D0 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.7% C 0.212 H 274.8°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#4242D0
RGB	rgb(66, 66, 208)
HSL	hsl(240, 60%, 54%)
HSV	hsv(240, 68%, 82%)
CMYK	cmyk(68.3%, 68.3%, 0%, 18.4%)
CIE-LAB	lab(37.13, 44.62, -73.00)
CIE-LCH	lch(37.13, 85.56, 301.43°)
OKLab	oklab(47.66% 0.0178 -0.2109)
OKLCH	oklch(47.66% 0.212 274.8)
XYZ	xyz(15.5764, 9.6073, 60.6958)
Luminance	0.0961 (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

#4242D0 #D0D042

analogous

#4289D0 #4242D0 #8942D0

triadic

#4242D0 #D04242 #42D042

tetradic

#4242D0 #D04289 #D0D042 #42D089

square

#4242D0 #D04289 #D0D042 #42D089

split-complementary

#4242D0 #D08942 #89D042

monochromatic

#1E1E79 #2A2AAA #4242D0 #7373DC #A4A4E8

Accessibility & contrast

On white

7.19

#4242D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#4242D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242D0

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242D0	#FFFFFF	#000000	##FFFFFF
##4242D0	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED4

Deuteranopia (green-blind)

#0051CD

Tritanopia (blue-blind)

#006884

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4242d0;
/* rgb */ color: rgb(66, 66, 208);
/* oklch */ color: oklch(47.7% 0.212 274.8);

Tailwind

colors: {
  custom: {
    50: '#8977e0',
    500: '#4242d0',
    950: '#000000',
  },
}

SCSS

$custom: #4242d0;
$custom-light: #8977e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4242d0",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 208
  },
  "hsl": {
    "h": 240,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.47663,
    "c": 0.21165,
    "h": 274.8
  },
  "luminance": 0.09609
}

Semantic roles & 50–950 ramp

primary

#4242D0

secondary

#D5D599

accent

#E344E3

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4242D0

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

Preview Lab → · Contrast checker → · Palette generator →