#42348E#42348E

#42348E is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.143 H 284.9°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#42348E
RGB	rgb(66, 52, 142)
HSL	hsl(249, 46%, 38%)
HSV	hsv(249, 63%, 56%)
CMYK	cmyk(53.5%, 63.4%, 0%, 44.3%)
CIE-LAB	lab(28.29, 31.41, -48.06)
CIE-LCH	lch(28.29, 57.42, 303.16°)
OKLab	oklab(39.5% 0.0367 -0.1378)
OKLCH	oklch(39.5% 0.143 284.9)
XYZ	xyz(8.3558, 5.5668, 26.2202)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42348E #808E34

analogous

#34538E #42348E #6F348E

triadic

#42348E #8E4234 #348E42

tetradic

#42348E #8E3453 #808E34 #348E6F

square

#42348E #8E3453 #808E34 #348E6F

split-complementary

#42348E #8E6F34 #538E34

monochromatic

#181334 #2D2461 #42348E #5744BB #7F71CB

Accessibility & contrast

On white

9.94

#42348E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#42348E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42348E

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42348E	#FFFFFF	#000000	##FFFFFF
##42348E	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#244A5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #42348e;
/* rgb */ color: rgb(66, 52, 142);
/* oklch */ color: oklch(39.5% 0.143 284.9);

Tailwind

colors: {
  custom: {
    50: '#7d6cb0',
    500: '#42348e',
    950: '#000000',
  },
}

SCSS

$custom: #42348e;
$custom-light: #7d6cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#42348e",
  "rgb": {
    "r": 66,
    "g": 52,
    "b": 142
  },
  "hsl": {
    "h": 249.333,
    "s": 46.392,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39501,
    "c": 0.1426,
    "h": 284.9
  },
  "luminance": 0.05567
}

Semantic roles & 50–950 ramp

primary

#42348E

secondary

#A8B36A

accent

#D652C1

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #42348E

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

Preview Lab → · Contrast checker → · Palette generator →