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Recognised as Colour

#51663F

  • #51663F
  • Green
  • Dark
  • Nearest: Dark olivegreen

#51663F is a green with RGB values 81, 102, 63 and HSL 92°, 24%, 32%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#51663F#51663F
HEX#51663F
RGBrgb(81, 102, 63)
RGB (0–1)0.3176, 0.4, 0.2471
RGB percentages31.8%, 40%, 24.7%
HSLhsl(92.3, 23.6%, 32.4%)
HSV / HSBhsv(92.3, 38.2%, 40%)
CMYK20.6%, 0%, 38.2%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,334,591
CSS custom property--colour: #51663F;

Brightness & contrast

Relative luminance0.11611WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.32:1
Contrast with white6.32:1WCAG normal text: AA
Contrast with black3.32:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#AE99C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#69613Cno red cones; affects about 1% of men; ΔE 13.2 from the original
Deuteranopia#665F41no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#52635Cno blue cones; rare, and affects men and women equally; ΔE 19.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.32:1WCAG large text: AAA
Contrast with black, large text3.32:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 11.6Dim grey · ΔE 25.3Dark slate grey · ΔE 25.4Sea green · ΔE 26.4Gray · ΔE 28.2Teal · ΔE 31.9
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 11.62, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#543F66
Analogous#64663F, #3F6641
Triadic#3F5166, #663F51
Split complementary#413F66, #663F64
Tetradic#3F6466, #543F66, #66413F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B7C9A8
Lighter +30%#9DB688
Lighter +20%#83A269
Lighter +10%#6A8652
Darker −10%#38462C
Darker −20%#1F2718
Darker −30%#060705
Darker −40%#000000
More saturated +25%#4F7B2A
Less saturated −25%#525252

Channel breakdown

R81
G102
B63
Red81 (31.8%)
Green102 (40%)
Blue63 (24.7%)
Hue92.31°
Saturation (HSL)23.64%
Lightness32.35%
Dominant channelGreen
Hex per channelR 51 · G 66 · B 3F

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Every value on this page was computed from “51663f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.