#4242CE#4242CE

#4242CE is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.5% C 0.209 H 275.0°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#4242CE
RGB	rgb(66, 66, 206)
HSL	hsl(240, 59%, 53%)
HSV	hsv(240, 68%, 81%)
CMYK	cmyk(68%, 68%, 0%, 19.2%)
CIE-LAB	lab(36.95, 43.96, -72.14)
CIE-LCH	lch(36.95, 84.48, 301.36°)
OKLab	oklab(47.48% 0.0181 -0.2084)
OKLCH	oklch(47.48% 0.209 275)
XYZ	xyz(15.3319, 9.5095, 59.4081)
Luminance	0.0951 (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

#4242CE #CECE42

analogous

#4288CE #4242CE #8842CE

triadic

#4242CE #CE4242 #42CE42

tetradic

#4242CE #CE4288 #CECE42 #42CE88

square

#4242CE #CE4288 #CECE42 #42CE88

split-complementary

#4242CE #CE8842 #88CE42

monochromatic

#1F1F77 #2B2BA7 #4242CE #7373DB #A3A3E7

Accessibility & contrast

On white

7.24

#4242CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#4242CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242CE

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242CE	#FFFFFF	#000000	##FFFFFF
##4242CE	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD2

Deuteranopia (green-blind)

#0050CB

Tritanopia (blue-blind)

#006883

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4242ce;
/* rgb */ color: rgb(66, 66, 206);
/* oklch */ color: oklch(47.5% 0.209 275.0);

Tailwind

colors: {
  custom: {
    50: '#8877de',
    500: '#4242ce',
    950: '#000000',
  },
}

SCSS

$custom: #4242ce;
$custom-light: #8877de;
$custom-dark: #000000;

JSON

{
  "hex": "#4242ce",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 206
  },
  "hsl": {
    "h": 240,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.47477,
    "c": 0.20916,
    "h": 275
  },
  "luminance": 0.09511
}

Semantic roles & 50–950 ramp

primary

#4242CE

secondary

#D4D498

accent

#E246E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4242CE

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

Preview Lab → · Contrast checker → · Palette generator →