#40429A#40429A

#40429A is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.9% C 0.141 H 277.7°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#40429A
RGB	rgb(64, 66, 154)
HSL	hsl(239, 41%, 43%)
HSV	hsv(239, 58%, 60%)
CMYK	cmyk(58.4%, 57.1%, 0%, 39.6%)
CIE-LAB	lab(32.52, 26.05, -48.56)
CIE-LCH	lch(32.52, 55.11, 298.22°)
OKLab	oklab(42.87% 0.0188 -0.1392)
OKLCH	oklch(42.87% 0.141 277.7)
XYZ	xyz(9.8934, 7.3188, 31.4569)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40429A #9A9840

analogous

#406F9A #40429A #6B409A

triadic

#40429A #9A4042 #429A40

tetradic

#40429A #9A406F #9A9840 #409A6B

square

#40429A #9A406F #9A9840 #409A6B

split-complementary

#40429A #9A6B40 #6F9A40

monochromatic

#1C1D44 #2E2F6F #40429A #5C5EBB #8789CD

Accessibility & contrast

On white

8.52

#40429A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#40429A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40429A

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40429A	#FFFFFF	#000000	##FFFFFF
##40429A	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509D

Deuteranopia (green-blind)

#004998

Tritanopia (blue-blind)

#085767

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #40429a;
/* rgb */ color: rgb(64, 66, 154);
/* oklch */ color: oklch(42.9% 0.141 277.7);

Tailwind

colors: {
  custom: {
    50: '#7d76b8',
    500: '#40429a',
    950: '#000000',
  },
}

SCSS

$custom: #40429a;
$custom-light: #7d76b8;
$custom-dark: #000000;

JSON

{
  "hex": "#40429a",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 154
  },
  "hsl": {
    "h": 238.667,
    "s": 41.284,
    "l": 42.745
  },
  "oklch": {
    "l": 0.4287,
    "c": 0.1405,
    "h": 277.7
  },
  "luminance": 0.0732
}

Semantic roles & 50–950 ramp

primary

#40429A

secondary

#B8B77E

accent

#CE57D1

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #40429A

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

Preview Lab → · Contrast checker → · Palette generator →