#40429F#40429F

#40429F is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.148 H 277.4°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#40429F
RGB	rgb(64, 66, 159)
HSL	hsl(239, 43%, 44%)
HSV	hsv(239, 60%, 62%)
CMYK	cmyk(59.7%, 58.5%, 0%, 37.6%)
CIE-LAB	lab(32.89, 27.77, -50.98)
CIE-LCH	lch(32.89, 58.05, 298.58°)
OKLab	oklab(43.27% 0.0189 -0.1463)
OKLCH	oklch(43.27% 0.148 277.4)
XYZ	xyz(10.3186, 7.4889, 33.6959)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40429F #9F9D40

analogous

#40719F #40429F #6D409F

triadic

#40429F #9F4042 #429F40

tetradic

#40429F #9F4071 #9F9D40 #409F6D

square

#40429F #9F4071 #9F9D40 #409F6D

split-complementary

#40429F #9F6D40 #719F40

monochromatic

#1D1E48 #2E3073 #40429F #5E60BE #8A8BD0

Accessibility & contrast

On white

8.41

#40429F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#40429F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40429F

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40429F	#FFFFFF	#000000	##FFFFFF
##40429F	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)

#0051A2

Deuteranopia (green-blind)

#00499D

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #40429f;
/* rgb */ color: rgb(64, 66, 159);
/* oklch */ color: oklch(43.3% 0.148 277.4);

Tailwind

colors: {
  custom: {
    50: '#7e76bc',
    500: '#40429f',
    950: '#000000',
  },
}

SCSS

$custom: #40429f;
$custom-light: #7e76bc;
$custom-dark: #000000;

JSON

{
  "hex": "#40429f",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 159
  },
  "hsl": {
    "h": 238.737,
    "s": 42.601,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43265,
    "c": 0.14756,
    "h": 277.4
  },
  "luminance": 0.0749
}

Semantic roles & 50–950 ramp

primary

#40429F

secondary

#BBB980

accent

#D055D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #40429F

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

Preview Lab → · Contrast checker → · Palette generator →