#51545F#51545F

#51545F is a dark, near-neutral grey. Relative luminance 0.089; OKLCH L 44.7% C 0.018 H 273.5°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#51545F
RGB	rgb(81, 84, 95)
HSL	hsl(227, 8%, 35%)
HSV	hsv(227, 15%, 37%)
CMYK	cmyk(14.7%, 11.6%, 0%, 62.7%)
CIE-LAB	lab(35.82, 1.35, -6.78)
CIE-LCH	lch(35.82, 6.91, 281.24°)
OKLab	oklab(44.72% 0.0011 -0.0183)
OKLCH	oklch(44.72% 0.018 273.5)
XYZ	xyz(8.6288, 8.9161, 12.0906)
Luminance	0.0892 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51545F #5F5C51

analogous

#515B5F #51545F #55515F

triadic

#51545F #5F5154 #545F51

tetradic

#51545F #5F515B #5F5C51 #515F55

square

#51545F #5F515B #5F5C51 #515F55

split-complementary

#51545F #5F5551 #5B5F51

monochromatic

#191A1D #35373E #51545F #6D7180 #8D909E

Accessibility & contrast

On white

7.55

#51545F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#51545F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51545F

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51545F	#FFFFFF	#000000	##FFFFFF
##51545F	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#515560

Deuteranopia (green-blind)

#50545F

Tritanopia (blue-blind)

#4E5658

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #51545f;
/* rgb */ color: rgb(81, 84, 95);
/* oklch */ color: oklch(44.7% 0.018 273.5);

Tailwind

colors: {
  custom: {
    50: '#82848c',
    500: '#51545f',
    950: '#000000',
  },
}

SCSS

$custom: #51545f;
$custom-light: #82848c;
$custom-dark: #000000;

JSON

{
  "hex": "#51545f",
  "rgb": {
    "r": 81,
    "g": 84,
    "b": 95
  },
  "hsl": {
    "h": 227.143,
    "s": 7.955,
    "l": 34.51
  },
  "oklch": {
    "l": 0.44721,
    "c": 0.01835,
    "h": 273.5
  },
  "luminance": 0.08916
}

Semantic roles & 50–950 ramp

primary

#51545F

secondary

#8D8A7F

accent

#A577B1

background

#F7F8F8

surface

#EEEFF0

border

#C9CACB

text

#0A0A0C

muted

#7C7C7D

Preview Lab

Preview with #51545F

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

Preview Lab → · Contrast checker → · Palette generator →