#4242DA#4242DA

#4242DA is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.6% C 0.224 H 274.2°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#4242DA
RGB	rgb(66, 66, 218)
HSL	hsl(240, 67%, 56%)
HSV	hsv(240, 70%, 85%)
CMYK	cmyk(69.7%, 69.7%, 0%, 14.5%)
CIE-LAB	lab(38.05, 47.89, -77.25)
CIE-LCH	lch(38.05, 90.89, 301.80°)
OKLab	oklab(48.6% 0.0165 -0.2233)
OKLCH	oklch(48.6% 0.224 274.2)
XYZ	xyz(16.8457, 10.1150, 67.3807)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.45

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4242DA #DADA42

analogous

#428EDA #4242DA #8E42DA

triadic

#4242DA #DA4242 #42DA42

tetradic

#4242DA #DA428E #DADA42 #42DA8E

square

#4242DA #DA428E #DADA42 #42DA8E

split-complementary

#4242DA #DA8E42 #8EDA42

monochromatic

#1A1A87 #2424BA #4242DA #7575E4 #A8A8EE

Accessibility & contrast

On white

6.95

#4242DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#4242DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4242DA

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242DA	#FFFFFF	#000000	##FFFFFF
##4242DA	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061DF

Deuteranopia (green-blind)

#0052D7

Tritanopia (blue-blind)

#006C89

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4242da;
/* rgb */ color: rgb(66, 66, 218);
/* oklch */ color: oklch(48.6% 0.224 274.2);

Tailwind

colors: {
  custom: {
    50: '#8b78e7',
    500: '#4242da',
    950: '#000000',
  },
}

SCSS

$custom: #4242da;
$custom-light: #8b78e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4242da",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 218
  },
  "hsl": {
    "h": 240,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.48604,
    "c": 0.22392,
    "h": 274.2
  },
  "luminance": 0.10117
}

Semantic roles & 50–950 ramp

primary

#4242DA

secondary

#DBDB9C

accent

#EA3EEA

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4242DA

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

Preview Lab → · Contrast checker → · Palette generator →