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Recognised as Colour

#181D09

  • #181D09
  • Green
  • Dark
  • Nearest: Black

#181D09 is a green with RGB values 24, 29, 9 and HSL 75°, 53%, 7%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#181D09#181D09
HEX#181D09
RGBrgb(24, 29, 9)
RGB (0–1)0.0941, 0.1137, 0.0353
RGB percentages9.4%, 11.4%, 3.5%
HSLhsl(75, 52.6%, 7.5%)
HSV / HSBhsv(75, 69%, 11.4%)
CMYK17.2%, 0%, 69%, 88.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,580,297
CSS custom property--colour: #181D09;

Brightness & contrast

Relative luminance0.01093WCAG 2.x, 0 is black and 1 is white
Perceived brightness26 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.23:1
Contrast with white17.23:1WCAG normal text: AAA
Contrast with black1.22:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#E7E2F6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F1B07no red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#1E1B0Ano green cones; the most common form, about 1% of men; ΔE 4.9 from the original
Tritanopia#1A1B18no blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.23:1WCAG large text: AAA
Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Black · ΔE 15.9Dark slate grey · ΔE 26.4Dim grey · ΔE 36.9Dark olivegreen · ΔE 40Gray · ΔE 45.6Slate grey · ΔE 48.3
Nearest named CSS colourBlack (#000000)ΔE 15.9, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0E091D
Analogous#1D1809, #0E1D09
Triadic#09181D, #1D0918
Split complementary#090E1D, #18091D
Tetradic#091D18, #0E091D, #1D090E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99B939
Lighter +30%#79922D
Lighter +20%#586B21
Lighter +10%#384415
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1A2204
Less saturated −25%#16180E

Channel breakdown

R24
G29
B9
Red24 (9.4%)
Green29 (11.4%)
Blue9 (3.5%)
Hue75°
Saturation (HSL)52.63%
Lightness7.45%
Dominant channelGreen
Hex per channelR 18 · G 1D · B 09

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Every value on this page was computed from “181d09” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.