#42429F#42429F

#42429F is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.4% C 0.147 H 278.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#42429F
RGB	rgb(66, 66, 159)
HSL	hsl(240, 41%, 44%)
HSV	hsv(240, 58%, 62%)
CMYK	cmyk(58.5%, 58.5%, 0%, 37.6%)
CIE-LAB	lab(33.04, 28.15, -50.73)
CIE-LCH	lch(33.04, 58.02, 299.02°)
OKLab	oklab(43.41% 0.0214 -0.1456)
OKLCH	oklch(43.41% 0.147 278.3)
XYZ	xyz(10.4510, 7.5572, 33.7021)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42429F #9F9F42

analogous

#42719F #42429F #71429F

triadic

#42429F #9F4242 #429F42

tetradic

#42429F #9F4271 #9F9F42 #429F71

square

#42429F #9F4271 #9F9F42 #429F71

split-complementary

#42429F #9F7142 #719F42

monochromatic

#1E1E49 #303074 #42429F #6161BD #8C8CCF

Accessibility & contrast

On white

8.36

#42429F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#42429F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42429F

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42429F	#FFFFFF	#000000	##FFFFFF
##42429F	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A2

Deuteranopia (green-blind)

#004A9D

Tritanopia (blue-blind)

#07586A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #42429f;
/* rgb */ color: rgb(66, 66, 159);
/* oklch */ color: oklch(43.4% 0.147 278.3);

Tailwind

colors: {
  custom: {
    50: '#7f76bc',
    500: '#42429f',
    950: '#000000',
  },
}

SCSS

$custom: #42429f;
$custom-light: #7f76bc;
$custom-dark: #000000;

JSON

{
  "hex": "#42429f",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 159
  },
  "hsl": {
    "h": 240,
    "s": 41.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43413,
    "c": 0.14713,
    "h": 278.3
  },
  "luminance": 0.07558
}

Semantic roles & 50–950 ramp

primary

#42429F

secondary

#BABA82

accent

#D157D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #42429F

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

Preview Lab → · Contrast checker → · Palette generator →