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Recognised as Colour

#181C16

  • #181C16
  • Green
  • Dark
  • Nearest: Black

#181C16 is a green with RGB values 24, 28, 22 and HSL 100°, 12%, 10%. It is a dark colour, so white text on it reaches 17.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#181C16#181C16
HEX#181C16
RGBrgb(24, 28, 22)
RGB (0–1)0.0941, 0.1098, 0.0863
RGB percentages9.4%, 11%, 8.6%
HSLhsl(100, 12%, 9.8%)
HSV / HSBhsv(100, 21.4%, 11%)
CMYK14.3%, 0%, 21.4%, 89%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,580,054
CSS custom property--colour: #181C16;

Brightness & contrast

Relative luminance0.01083WCAG 2.x, 0 is black and 1 is white
Perceived brightness26.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.26:1
Contrast with white17.26:1WCAG normal text: AAA
Contrast with black1.22:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#E7E3E9

Colour vision & accessibility

Protanopia#1D1B16no red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#1C1B16no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#181B1Ano blue cones; rare, and affects men and women equally; ΔE 3.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.26:1WCAG large text: AAA
Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 10.83, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1A161C
Analogous#1B1C16, #161C17
Triadic#16181C, #1C1618
Split complementary#17161C, #1C161B
Tetradic#161B1C, #1A161C, #1C1716

Tints, shades & saturation

Lighter +40%#7A8E70
Lighter +30%#617259
Lighter +20%#495543
Lighter +10%#30392C
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#162210
Less saturated −25%#191919

Channel breakdown

R24
G28
B22
Red24 (9.4%)
Green28 (11%)
Blue22 (8.6%)
Hue100°
Saturation (HSL)12%
Lightness9.8%
Dominant channelGreen
Hex per channelR 18 · G 1C · B 16

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Every value on this page was computed from “181c16” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.