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Recognised as Colour

#4C5151

  • #4C5151
  • Grey
  • Dark
  • Nearest: Dark slate grey

#4C5151 is a grey with RGB values 76, 81, 81 and HSL 180°, 3%, 31%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#4C5151#4C5151
HEX#4C5151
RGBrgb(76, 81, 81)
RGB (0–1)0.298, 0.3176, 0.3176
RGB percentages29.8%, 31.8%, 31.8%
HSLhsl(180, 3.2%, 30.8%)
HSV / HSBhsv(180, 6.2%, 31.8%)
CMYK6.2%, 0%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,001,553
CSS custom property--colour: #4C5151;

Brightness & contrast

Relative luminance0.08015WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.07:1
Contrast with white8.07:1WCAG normal text: AAA
Contrast with black2.6:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#B3AEAE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#505051no red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#4F5051no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#4B5151no blue cones; rare, and affects men and women equally; ΔE 0.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.07:1WCAG large text: AAA
Contrast with black, large text2.6:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 10.5Dim grey · ΔE 10.6Gray · ΔE 19.7Slate grey · ΔE 21.3Light slate grey · ΔE 24.3Teal · ΔE 31.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 10.54, a distinctly different colour
Hue familygrey
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#514C4C
Analogous#4C514F, #4C4F51
Triadic#514C51, #51514C
Split complementary#514C4F, #514F4C
Tetradic#4F4C51, #514C4C, #4F514C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B2B7B7
Lighter +30%#989E9E
Lighter +20%#7E8585
Lighter +10%#656B6B
Darker −10%#333737
Darker −20%#1B1C1C
Darker −30%#020202
Darker −40%#000000
More saturated +25%#386565
Less saturated −25%#4F4F4F

Channel breakdown

R76
G81
B81
Red76 (29.8%)
Green81 (31.8%)
Blue81 (31.8%)
Hue180°
Saturation (HSL)3.18%
Lightness30.78%
Dominant channelGreen and Blue
Hex per channelR 4C · G 51 · B 51

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Every value on this page was computed from “4c5151” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.