#42358F#42358F

#42358F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.143 H 284.4°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#42358F
RGB	rgb(66, 53, 143)
HSL	hsl(249, 46%, 38%)
HSV	hsv(249, 63%, 56%)
CMYK	cmyk(53.8%, 62.9%, 0%, 43.9%)
CIE-LAB	lab(28.61, 31.11, -48.17)
CIE-LCH	lch(28.61, 57.34, 302.86°)
OKLab	oklab(39.76% 0.0355 -0.1381)
OKLCH	oklch(39.76% 0.143 284.4)
XYZ	xyz(8.4763, 5.6872, 26.6324)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42358F #828F35

analogous

#35558F #42358F #6F358F

triadic

#42358F #8F4235 #358F42

tetradic

#42358F #8F3555 #828F35 #358F6F

square

#42358F #8F3555 #828F35 #358F6F

split-complementary

#42358F #8F6F35 #558F35

monochromatic

#191436 #2D2462 #42358F #5747BB #8073CB

Accessibility & contrast

On white

9.82

#42358F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#42358F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42358F

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42358F	#FFFFFF	#000000	##FFFFFF
##42358F	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004692

Deuteranopia (green-blind)

#00418D

Tritanopia (blue-blind)

#234A5D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #42358f;
/* rgb */ color: rgb(66, 53, 143);
/* oklch */ color: oklch(39.8% 0.143 284.4);

Tailwind

colors: {
  custom: {
    50: '#7e6db0',
    500: '#42358f',
    950: '#000000',
  },
}

SCSS

$custom: #42358f;
$custom-light: #7e6db0;
$custom-dark: #000000;

JSON

{
  "hex": "#42358f",
  "rgb": {
    "r": 66,
    "g": 53,
    "b": 143
  },
  "hsl": {
    "h": 248.667,
    "s": 45.918,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39758,
    "c": 0.14259,
    "h": 284.4
  },
  "luminance": 0.05688
}

Semantic roles & 50–950 ramp

primary

#42358F

secondary

#A9B46C

accent

#D652C3

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #42358F

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

Preview Lab → · Contrast checker → · Palette generator →