#42429D#42429D

#42429D is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.144 H 278.5°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#42429D
RGB	rgb(66, 66, 157)
HSL	hsl(240, 41%, 44%)
HSV	hsv(240, 58%, 62%)
CMYK	cmyk(58%, 58%, 0%, 38.4%)
CIE-LAB	lab(32.89, 27.47, -49.77)
CIE-LCH	lch(32.89, 56.84, 298.90°)
OKLab	oklab(43.26% 0.0213 -0.1427)
OKLCH	oklch(43.26% 0.144 278.5)
XYZ	xyz(10.2789, 7.4883, 32.7955)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42429D #9D9D42

analogous

#426F9D #42429D #6F429D

triadic

#42429D #9D4242 #429D42

tetradic

#42429D #9D426F #9D9D42 #429D6F

square

#42429D #9D426F #9D9D42 #429D6F

split-complementary

#42429D #9D6F42 #6F9D42

monochromatic

#1E1E47 #303072 #42429D #6060BC #8B8BCE

Accessibility & contrast

On white

8.41

#42429D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#42429D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42429D

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42429D	#FFFFFF	#000000	##FFFFFF
##42429D	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A0

Deuteranopia (green-blind)

#004A9B

Tritanopia (blue-blind)

#0D5769

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #42429d;
/* rgb */ color: rgb(66, 66, 157);
/* oklch */ color: oklch(43.3% 0.144 278.5);

Tailwind

colors: {
  custom: {
    50: '#7f76bb',
    500: '#42429d',
    950: '#000000',
  },
}

SCSS

$custom: #42429d;
$custom-light: #7f76bb;
$custom-dark: #000000;

JSON

{
  "hex": "#42429d",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 157
  },
  "hsl": {
    "h": 240,
    "s": 40.807,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43255,
    "c": 0.14431,
    "h": 278.5
  },
  "luminance": 0.07489
}

Semantic roles & 50–950 ramp

primary

#42429D

secondary

#B9B982

accent

#D157D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #42429D

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

Preview Lab → · Contrast checker → · Palette generator →