#4242CC#4242CC

#4242CC is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.3% C 0.207 H 275.1°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#4242CC
RGB	rgb(66, 66, 204)
HSL	hsl(240, 58%, 53%)
HSV	hsv(240, 68%, 80%)
CMYK	cmyk(67.6%, 67.6%, 0%, 20%)
CIE-LAB	lab(36.77, 43.30, -71.28)
CIE-LCH	lch(36.77, 83.40, 301.28°)
OKLab	oklab(47.29% 0.0183 -0.2058)
OKLCH	oklch(47.29% 0.207 275.1)
XYZ	xyz(15.0905, 9.4129, 58.1367)
Luminance	0.0941 (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

#4242CC #CCCC42

analogous

#4287CC #4242CC #8742CC

triadic

#4242CC #CC4242 #42CC42

tetradic

#4242CC #CC4287 #CCCC42 #42CC87

square

#4242CC #CC4287 #CCCC42 #42CC87

split-complementary

#4242CC #CC8742 #87CC42

monochromatic

#1F1F74 #2C2CA4 #4242CC #7272D9 #A2A2E6

Accessibility & contrast

On white

7.28

#4242CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#4242CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242CC

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242CC	#FFFFFF	#000000	##FFFFFF
##4242CC	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD0

Deuteranopia (green-blind)

#0050C9

Tritanopia (blue-blind)

#006782

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4242cc;
/* rgb */ color: rgb(66, 66, 204);
/* oklch */ color: oklch(47.3% 0.207 275.1);

Tailwind

colors: {
  custom: {
    50: '#8877dd',
    500: '#4242cc',
    950: '#000000',
  },
}

SCSS

$custom: #4242cc;
$custom-light: #8877dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4242cc",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 204
  },
  "hsl": {
    "h": 240,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.47293,
    "c": 0.20666,
    "h": 275.1
  },
  "luminance": 0.09414
}

Semantic roles & 50–950 ramp

primary

#4242CC

secondary

#D3D397

accent

#E147E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4242CC

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

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