#42358D#42358D

#42358D is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.6% C 0.140 H 284.8°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#42358D
RGB	rgb(66, 53, 141)
HSL	hsl(249, 45%, 38%)
HSV	hsv(249, 62%, 55%)
CMYK	cmyk(53.2%, 62.4%, 0%, 44.7%)
CIE-LAB	lab(28.45, 30.46, -47.19)
CIE-LCH	lch(28.45, 56.16, 302.84°)
OKLab	oklab(39.59% 0.0357 -0.1352)
OKLCH	oklch(39.59% 0.14 284.8)
XYZ	xyz(8.3261, 5.6271, 25.8416)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42358D #808D35

analogous

#35548D #42358D #6E358D

triadic

#42358D #8D4235 #358D42

tetradic

#42358D #8D3554 #808D35 #358D6E

square

#42358D #8D3554 #808D35 #358D6E

split-complementary

#42358D #8D6E35 #548D35

monochromatic

#181434 #2D2461 #42358D #5746B9 #7F72CA

Accessibility & contrast

On white

9.88

#42358D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#42358D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42358D

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42358D	#FFFFFF	#000000	##FFFFFF
##42358D	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#244A5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #42358d;
/* rgb */ color: rgb(66, 53, 141);
/* oklch */ color: oklch(39.6% 0.140 284.8);

Tailwind

colors: {
  custom: {
    50: '#7d6daf',
    500: '#42358d',
    950: '#000000',
  },
}

SCSS

$custom: #42358d;
$custom-light: #7d6daf;
$custom-dark: #000000;

JSON

{
  "hex": "#42358d",
  "rgb": {
    "r": 66,
    "g": 53,
    "b": 141
  },
  "hsl": {
    "h": 248.864,
    "s": 45.361,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39593,
    "c": 0.13984,
    "h": 284.8
  },
  "luminance": 0.05628
}

Semantic roles & 50–950 ramp

primary

#42358D

secondary

#A8B26B

accent

#D553C2

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #42358D

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

Preview Lab → · Contrast checker → · Palette generator →