#40545F#40545F

#40545F is a dark, muted cyan. Relative luminance 0.083; OKLCH L 43.4% C 0.031 H 232.4°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#40545F
RGB	rgb(64, 84, 95)
HSL	hsl(201, 19%, 31%)
HSV	hsv(201, 33%, 37%)
CMYK	cmyk(32.6%, 11.6%, 0%, 62.7%)
CIE-LAB	lab(34.51, -4.71, -8.88)
CIE-LCH	lch(34.51, 10.05, 242.08°)
OKLab	oklab(43.36% -0.0187 -0.0243)
OKLCH	oklch(43.36% 0.031 232.4)
XYZ	xyz(7.3496, 8.2565, 12.0307)
Luminance	0.0826 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40545F #5F4B40

analogous

#405F5A #40545F #40445F

triadic

#40545F #5F4054 #545F40

tetradic

#40545F #5A405F #5F4B40 #445F40

square

#40545F #5A405F #5F4B40 #445F40

split-complementary

#40545F #5F4044 #5F5A40

monochromatic

#0F1316 #27343A #40545F #597484 #7693A3

Accessibility & contrast

On white

7.92

#40545F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#40545F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40545F

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40545F	#FFFFFF	#000000	##FFFFFF
##40545F	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5360

Deuteranopia (green-blind)

#4A505F

Tritanopia (blue-blind)

#365757

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40545f;
/* rgb */ color: rgb(64, 84, 95);
/* oklch */ color: oklch(43.4% 0.031 232.4);

Tailwind

colors: {
  custom: {
    50: '#76848c',
    500: '#40545f',
    950: '#000000',
  },
}

SCSS

$custom: #40545f;
$custom-light: #76848c;
$custom-dark: #000000;

JSON

{
  "hex": "#40545f",
  "rgb": {
    "r": 64,
    "g": 84,
    "b": 95
  },
  "hsl": {
    "h": 201.29,
    "s": 19.497,
    "l": 31.176
  },
  "oklch": {
    "l": 0.43356,
    "c": 0.03066,
    "h": 232.4
  },
  "luminance": 0.08257
}

Semantic roles & 50–950 ramp

primary

#40545F

secondary

#8F786C

accent

#886CBC

background

#F7F8F8

surface

#EDEFF0

border

#C8CACB

text

#080A0C

muted

#7B7C7D

Preview Lab

Preview with #40545F

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

Preview Lab → · Contrast checker → · Palette generator →