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Recognised as Colour

#51565A

  • #51565A
  • Grey
  • Dark
  • Nearest: Dim grey

#51565A is a grey with RGB values 81, 86, 90 and HSL 207°, 5%, 34%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#51565A#51565A
HEX#51565A
RGBrgb(81, 86, 90)
RGB (0–1)0.3176, 0.3373, 0.3529
RGB percentages31.8%, 33.7%, 35.3%
HSLhsl(206.7, 5.3%, 33.5%)
HSV / HSBhsv(206.7, 10%, 35.3%)
CMYK10%, 4.4%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,330,522
CSS custom property--colour: #51565A;

Brightness & contrast

Relative luminance0.09143WCAG 2.x, 0 is black and 1 is white
Perceived brightness85 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.42:1
Contrast with white7.42:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#555555
Inverted#AEA9A5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#54565Ano red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#53555Ano green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#4F5757no blue cones; rare, and affects men and women equally; ΔE 2.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.42:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail

Named colours

Dim grey · ΔE 8.8Dark slate grey · ΔE 11.8Gray · ΔE 17.6Slate grey · ΔE 18.3Light slate grey · ΔE 21.3Teal · ΔE 30.7
Nearest named CSS colourDim grey (#696969)ΔE 8.76, clearly different but related
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A5551
Analogous#515A5A, #51525A
Triadic#5A5156, #565A51
Split complementary#5A5152, #5A5A51
Tetradic#5A515A, #5A5551, #525A51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8BCBF
Lighter +30%#9DA3A7
Lighter +20%#82898F
Lighter +10%#697075
Darker −10%#393C3F
Darker −20%#212324
Darker −30%#090909
Darker −40%#000000
More saturated +25%#3C586F
Less saturated −25%#565656

Channel breakdown

R81
G86
B90
Red81 (31.8%)
Green86 (33.7%)
Blue90 (35.3%)
Hue206.67°
Saturation (HSL)5.26%
Lightness33.53%
Dominant channelBlue
Hex per channelR 51 · G 56 · B 5A

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Every value on this page was computed from “51565a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.