#42408D#42408D

#42408D is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.124 H 280.7°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#42408D
RGB	rgb(66, 64, 141)
HSL	hsl(242, 38%, 40%)
HSV	hsv(242, 55%, 55%)
CMYK	cmyk(53.2%, 54.6%, 0%, 44.7%)
CIE-LAB	lab(31.23, 23.38, -42.70)
CIE-LCH	lch(31.23, 48.68, 298.70°)
OKLab	oklab(41.65% 0.0231 -0.122)
OKLCH	oklch(41.65% 0.124 280.7)
XYZ	xyz(8.8864, 6.7476, 26.0283)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42408D #8B8D40

analogous

#40658D #42408D #68408D

triadic

#42408D #8D4240 #408D42

tetradic

#42408D #8D4065 #8B8D40 #408D68

square

#42408D #8D4065 #8B8D40 #408D68

split-complementary

#42408D #8D6840 #658D40

monochromatic

#1B1A39 #2E2D63 #42408D #5A57B3 #8381C6

Accessibility & contrast

On white

8.94

#42408D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#42408D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42408D

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42408D	#FFFFFF	#000000	##FFFFFF
##42408D	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154C90

Deuteranopia (green-blind)

#0B478B

Tritanopia (blue-blind)

#235160

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #42408d;
/* rgb */ color: rgb(66, 64, 141);
/* oklch */ color: oklch(41.6% 0.124 280.7);

Tailwind

colors: {
  custom: {
    50: '#7c75af',
    500: '#42408d',
    950: '#000000',
  },
}

SCSS

$custom: #42408d;
$custom-light: #7c75af;
$custom-dark: #000000;

JSON

{
  "hex": "#42408d",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 141
  },
  "hsl": {
    "h": 241.558,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41646,
    "c": 0.12412,
    "h": 280.7
  },
  "luminance": 0.06748
}

Semantic roles & 50–950 ramp

primary

#42408D

secondary

#AFB078

accent

#CE5ACB

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #42408D

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

Preview Lab → · Contrast checker → · Palette generator →