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Recognised as Colour

#18271D

  • #18271D
  • Green
  • Dark
  • Nearest: Black

#18271D is a green with RGB values 24, 39, 29 and HSL 140°, 24%, 12%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#18271D#18271D
HEX#18271D
RGBrgb(24, 39, 29)
RGB (0–1)0.0941, 0.1529, 0.1137
RGB percentages9.4%, 15.3%, 11.4%
HSLhsl(140, 23.8%, 12.4%)
HSV / HSBhsv(140, 38.5%, 15.3%)
CMYK38.5%, 0%, 25.6%, 84.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,582,877
CSS custom property--colour: #18271D;

Brightness & contrast

Relative luminance0.01734WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.59:1
Contrast with white15.59:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#E7D8E2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#27251Cno red cones; affects about 1% of men; ΔE 8.3 from the original
Deuteranopia#24231Eno green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#152724no blue cones; rare, and affects men and women equally; ΔE 5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.59:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Black · ΔE 17.3Dark slate grey · ΔE 19.3Dim grey · ΔE 32.1Dark olivegreen · ΔE 39.6Gray · ΔE 40.9Teal · ΔE 41.6
Nearest named CSS colourBlack (#000000)ΔE 17.35, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#271822
Analogous#1B2718, #182725
Triadic#1D1827, #271D18
Split complementary#251827, #27181B
Tetradic#181A27, #271822, #272518

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#69A27C
Lighter +30%#528663
Lighter +20%#3F664C
Lighter +10%#2B4734
Darker −10%#050706
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#102F1A
Less saturated −25%#202020

Channel breakdown

R24
G39
B29
Red24 (9.4%)
Green39 (15.3%)
Blue29 (11.4%)
Hue140°
Saturation (HSL)23.81%
Lightness12.35%
Dominant channelGreen
Hex per channelR 18 · G 27 · B 1D

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Every value on this page was computed from “18271d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.