#42408C#42408C

#42408C is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.123 H 280.8°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#42408C
RGB	rgb(66, 64, 140)
HSL	hsl(242, 37%, 40%)
HSV	hsv(242, 54%, 55%)
CMYK	cmyk(52.9%, 54.3%, 0%, 45.1%)
CIE-LAB	lab(31.16, 23.04, -42.20)
CIE-LCH	lch(31.16, 48.08, 298.64°)
OKLab	oklab(41.57% 0.023 -0.1205)
OKLCH	oklch(41.57% 0.123 280.8)
XYZ	xyz(8.8123, 6.7180, 25.6382)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42408C #8A8C40

analogous

#40648C #42408C #68408C

triadic

#42408C #8C4240 #408C42

tetradic

#42408C #8C4064 #8A8C40 #408C68

square

#42408C #8C4064 #8A8C40 #408C68

split-complementary

#42408C #8C6840 #648C40

monochromatic

#1A1A38 #2E2D62 #42408C #5957B2 #8381C5

Accessibility & contrast

On white

8.96

#42408C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#42408C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42408C

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42408C	#FFFFFF	#000000	##FFFFFF
##42408C	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174C8F

Deuteranopia (green-blind)

#0E478A

Tritanopia (blue-blind)

#24515F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #42408c;
/* rgb */ color: rgb(66, 64, 140);
/* oklch */ color: oklch(41.6% 0.123 280.8);

Tailwind

colors: {
  custom: {
    50: '#7c75ae',
    500: '#42408c',
    950: '#000000',
  },
}

SCSS

$custom: #42408c;
$custom-light: #7c75ae;
$custom-dark: #000000;

JSON

{
  "hex": "#42408c",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 140
  },
  "hsl": {
    "h": 241.579,
    "s": 37.255,
    "l": 40
  },
  "oklch": {
    "l": 0.41572,
    "c": 0.12266,
    "h": 280.8
  },
  "luminance": 0.06718
}

Semantic roles & 50–950 ramp

primary

#42408C

secondary

#AEB078

accent

#CD5BCA

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #42408C

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

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