#42418D#42418D

#42418D is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.8% C 0.123 H 280.3°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#42418D
RGB	rgb(66, 65, 141)
HSL	hsl(241, 37%, 40%)
HSV	hsv(241, 54%, 55%)
CMYK	cmyk(53.2%, 53.9%, 0%, 44.7%)
CIE-LAB	lab(31.49, 22.72, -42.28)
CIE-LCH	lch(31.49, 48.00, 298.26°)
OKLab	oklab(41.84% 0.0219 -0.1207)
OKLCH	oklch(41.84% 0.123 280.3)
XYZ	xyz(8.9433, 6.8614, 26.0473)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42418D #8C8D41

analogous

#41668D #42418D #68418D

triadic

#42418D #8D4241 #418D42

tetradic

#42418D #8D4166 #8C8D41 #418D68

square

#42418D #8D4166 #8C8D41 #418D68

split-complementary

#42418D #8D6841 #668D41

monochromatic

#1B1A39 #2E2E63 #42418D #5A59B2 #8483C6

Accessibility & contrast

On white

8.85

#42418D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#42418D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42418D

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42418D	#FFFFFF	#000000	##FFFFFF
##42418D	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184D90

Deuteranopia (green-blind)

#0F478B

Tritanopia (blue-blind)

#235260

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #42418d;
/* rgb */ color: rgb(66, 65, 141);
/* oklch */ color: oklch(41.8% 0.123 280.3);

Tailwind

colors: {
  custom: {
    50: '#7c75af',
    500: '#42418d',
    950: '#000000',
  },
}

SCSS

$custom: #42418d;
$custom-light: #7c75af;
$custom-dark: #000000;

JSON

{
  "hex": "#42418d",
  "rgb": {
    "r": 66,
    "g": 65,
    "b": 141
  },
  "hsl": {
    "h": 240.789,
    "s": 36.893,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41843,
    "c": 0.12267,
    "h": 280.3
  },
  "luminance": 0.06862
}

Semantic roles & 50–950 ramp

primary

#42418D

secondary

#B0B079

accent

#CD5BCB

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #42418D

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

Preview Lab → · Contrast checker → · Palette generator →