#40424E#40424E

#40424E is a dark, muted blue. Relative luminance 0.055; OKLCH L 38.2% C 0.021 H 277.9°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#40424E
RGB	rgb(64, 66, 78)
HSL	hsl(231, 10%, 28%)
HSV	hsv(231, 18%, 31%)
CMYK	cmyk(17.9%, 15.4%, 0%, 69.4%)
CIE-LAB	lab(28.21, 2.09, -7.50)
CIE-LCH	lch(28.21, 7.79, 285.59°)
OKLab	oklab(38.19% 0.0028 -0.0203)
OKLCH	oklch(38.19% 0.021 277.9)
XYZ	xyz(5.4374, 5.5364, 7.9884)
Luminance	0.0554 (WCAG relative)
Temperature	neutral
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40424E #4E4C40

analogous

#40494E #40424E #45404E

triadic

#40424E #4E4042 #424E40

tetradic

#40424E #4E4049 #4E4C40 #404E45

square

#40424E #4E4049 #4E4C40 #404E45

split-complementary

#40424E #4E4540 #494E40

monochromatic

#0E0E11 #24262C #40424E #5C5E70 #787C90

Accessibility & contrast

On white

9.97

#40424E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#40424E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40424E

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40424E	#FFFFFF	#000000	##FFFFFF
##40424E	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F434F

Deuteranopia (green-blind)

#3E424E

Tritanopia (blue-blind)

#3D4446

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40424e;
/* rgb */ color: rgb(64, 66, 78);
/* oklch */ color: oklch(38.2% 0.021 277.9);

Tailwind

colors: {
  custom: {
    50: '#75767f',
    500: '#40424e',
    950: '#000000',
  },
}

SCSS

$custom: #40424e;
$custom-light: #75767f;
$custom-dark: #000000;

JSON

{
  "hex": "#40424e",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 78
  },
  "hsl": {
    "h": 231.429,
    "s": 9.859,
    "l": 27.843
  },
  "oklch": {
    "l": 0.38188,
    "c": 0.02055,
    "h": 277.9
  },
  "luminance": 0.05536
}

Semantic roles & 50–950 ramp

primary

#40424E

secondary

#7D7B6D

accent

#AA75B3

background

#F7F7F7

surface

#EDEDEE

border

#C8C8C9

text

#08080A

muted

#7B7B7C

Preview Lab

Preview with #40424E

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

Preview Lab → · Contrast checker → · Palette generator →