#42429C#42429C

#42429C is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.2% C 0.143 H 278.6°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#42429C
RGB	rgb(66, 66, 156)
HSL	hsl(240, 41%, 44%)
HSV	hsv(240, 58%, 61%)
CMYK	cmyk(57.7%, 57.7%, 0%, 38.8%)
CIE-LAB	lab(32.82, 27.13, -49.28)
CIE-LCH	lch(32.82, 56.25, 298.83°)
OKLab	oklab(43.18% 0.0213 -0.1413)
OKLCH	oklch(43.18% 0.143 278.6)
XYZ	xyz(10.1938, 7.4543, 32.3477)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42429C #9C9C42

analogous

#426F9C #42429C #6F429C

triadic

#42429C #9C4242 #429C42

tetradic

#42429C #9C426F #9C9C42 #429C6F

square

#42429C #9C426F #9C9C42 #429C6F

split-complementary

#42429C #9C6F42 #6F9C42

monochromatic

#1E1E46 #303071 #42429C #6060BC #8B8BCE

Accessibility & contrast

On white

8.43

#42429C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#42429C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42429C

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42429C	#FFFFFF	#000000	##FFFFFF
##42429C	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00519F

Deuteranopia (green-blind)

#004A9A

Tritanopia (blue-blind)

#0F5768

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #42429c;
/* rgb */ color: rgb(66, 66, 156);
/* oklch */ color: oklch(43.2% 0.143 278.6);

Tailwind

colors: {
  custom: {
    50: '#7f76ba',
    500: '#42429c',
    950: '#000000',
  },
}

SCSS

$custom: #42429c;
$custom-light: #7f76ba;
$custom-dark: #000000;

JSON

{
  "hex": "#42429c",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 156
  },
  "hsl": {
    "h": 240,
    "s": 40.541,
    "l": 43.529
  },
  "oklch": {
    "l": 0.43176,
    "c": 0.1429,
    "h": 278.6
  },
  "luminance": 0.07455
}

Semantic roles & 50–950 ramp

primary

#42429C

secondary

#B9B981

accent

#D057D0

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #42429C

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

Preview Lab → · Contrast checker → · Palette generator →