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Colour

#515B5B

  • #515B5B
  • Grey
  • Dark
  • Nearest: Dim grey

#515B5B is a grey with RGB values 81, 91, 91 and HSL 180°, 6%, 34%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#515B5B#515B5B
HEX#515B5B
RGBrgb(81, 91, 91)
RGB (0–1)0.3176, 0.3569, 0.3569
RGB percentages31.8%, 35.7%, 35.7%
HSLhsl(180, 5.8%, 33.7%)
HSV / HSBhsv(180, 11%, 35.7%)
CMYK11%, 0%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,331,803
CSS custom property--colour: #515B5B;

Brightness & contrast

Relative luminance0.09987WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.01:1
Contrast with white7.01:1WCAG normal text: AAA
Contrast with black3:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#AEA4A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A5A5Bno red cones; affects about 1% of men; ΔE 4.2 from the original
Deuteranopia#57585Bno green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#4E5C5Bno blue cones; rare, and affects men and women equally; ΔE 1.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.01:1WCAG large text: AAA
Contrast with black, large text3:1WCAG large text: Fail

Named colours

Dim grey · ΔE 7.8Dark slate grey · ΔE 10.5Gray · ΔE 16.3Slate grey · ΔE 17.7Light slate grey · ΔE 20.6Teal · ΔE 28
Nearest named CSS colourDim grey (#696969)ΔE 7.77, clearly different but related
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B5151
Analogous#515B56, #51565B
Triadic#5B515B, #5B5B51
Split complementary#5B5156, #5B5651
Tetradic#56515B, #5B5151, #565B51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8C0C0
Lighter +30%#9DA8A8
Lighter +20%#829090
Lighter +10%#697676
Darker −10%#394040
Darker −20%#212525
Darker −30%#090A0A
Darker −40%#000000
More saturated +25%#3C7171
Less saturated −25%#565656

Channel breakdown

R81
G91
B91
Red81 (31.8%)
Green91 (35.7%)
Blue91 (35.7%)
Hue180°
Saturation (HSL)5.81%
Lightness33.73%
Dominant channelGreen and Blue
Hex per channelR 51 · G 5B · B 5B

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Every value on this page was computed from “515b5b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.