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Colour

#173A1D

  • #173A1D
  • Green
  • Dark
  • Nearest: Dark slate grey

#173A1D is a green with RGB values 23, 58, 29 and HSL 130°, 43%, 16%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#173A1D#173A1D
HEX#173A1D
RGBrgb(23, 58, 29)
RGB (0–1)0.0902, 0.2275, 0.1137
RGB percentages9%, 22.7%, 11.4%
HSLhsl(130.3, 43.2%, 15.9%)
HSV / HSBhsv(130.3, 60.3%, 22.7%)
CMYK60.3%, 0%, 50%, 77.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,522,205
CSS custom property--colour: #173A1D;

Brightness & contrast

Relative luminance0.03297WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.66:1
Contrast with white12.66:1WCAG normal text: AAA
Contrast with black1.66:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#E8C5E2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B351Bno red cones; affects about 1% of men; ΔE 18.8 from the original
Deuteranopia#36321Fno green cones; the most common form, about 1% of men; ΔE 18.6 from the original
Tritanopia#103933no blue cones; rare, and affects men and women equally; ΔE 15.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.66:1WCAG large text: AAA
Contrast with black, large text1.66:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22.3Dark olivegreen · ΔE 26.7Black · ΔE 32.6Dim grey · ΔE 34Teal · ΔE 36.4Sea green · ΔE 36.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 22.31, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3A1734
Analogous#233A17, #173A2E
Triadic#1D173A, #3A1D17
Split complementary#2E173A, #3A1723
Tetradic#17233A, #3A1734, #3A2E17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5EBF6F
Lighter +30%#42A854
Lighter +20%#348342
Lighter +10%#255F2F
Darker −10%#09150B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D4416
Less saturated −25%#213024

Channel breakdown

R23
G58
B29
Red23 (9%)
Green58 (22.7%)
Blue29 (11.4%)
Hue130.29°
Saturation (HSL)43.21%
Lightness15.88%
Dominant channelGreen
Hex per channelR 17 · G 3A · B 1D

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Every value on this page was computed from “173a1d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.