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Recognised as Colour

#18161B

  • #18161B
  • Violet
  • Dark
  • Nearest: Black

#18161B is a violet with RGB values 24, 22, 27 and HSL 264°, 10%, 10%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#18161B#18161B
HEX#18161B
RGBrgb(24, 22, 27)
RGB (0–1)0.0941, 0.0863, 0.1059
RGB percentages9.4%, 8.6%, 10.6%
HSLhsl(264, 10.2%, 9.6%)
HSV / HSBhsv(264, 18.5%, 10.6%)
CMYK11.1%, 18.5%, 0%, 89.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,578,523
CSS custom property--colour: #18161B;

Brightness & contrast

Relative luminance0.00847WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.96:1
Contrast with white17.96:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#E7E9E4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#15171Bno red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#16171Bno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#181718no blue cones; rare, and affects men and women equally; ΔE 3.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.96:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 8.6Dark slate grey · ΔE 27.5Dim grey · ΔE 37Slate grey · ΔE 46Gray · ΔE 46.1Light slate grey · ΔE 49.1
Nearest named CSS colourBlack (#000000)ΔE 8.59, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#191B16
Analogous#16171B, #1B161B
Triadic#1B1816, #161B18
Split complementary#1B1A16, #171B16
Tetradic#1B1616, #191B16, #161B1A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7C728B
Lighter +30%#635B6F
Lighter +20%#4A4453
Lighter +10%#312D37
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#171021
Less saturated −25%#181818

Channel breakdown

R24
G22
B27
Red24 (9.4%)
Green22 (8.6%)
Blue27 (10.6%)
Hue264°
Saturation (HSL)10.2%
Lightness9.61%
Dominant channelBlue
Hex per channelR 18 · G 16 · B 1B

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Every value on this page was computed from “18161b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.