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Colour

#577B17

  • #577B17
  • Green
  • Dark
  • Nearest: Olivedrab

#577B17 is a green with RGB values 87, 123, 23 and HSL 82°, 68%, 29%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Olivedrab.

Colour values

#577B17#577B17
HEX#577B17
RGBrgb(87, 123, 23)
RGB (0–1)0.3412, 0.4824, 0.0902
RGB percentages34.1%, 48.2%, 9%
HSLhsl(81.6, 68.5%, 28.6%)
HSV / HSBhsv(81.6, 81.3%, 48.2%)
CMYK29.3%, 0%, 81.3%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,733,143
CSS custom property--colour: #577B17;

Brightness & contrast

Relative luminance0.16254WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.94:1
Contrast with white4.94:1WCAG normal text: AA
Contrast with black4.25:1WCAG normal text: Fail
Greyscale equivalent#6C6C6C
Inverted#A884E8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#817200no red cones; affects about 1% of men; ΔE 24.4 from the original
Deuteranopia#7D6F22no green cones; the most common form, about 1% of men; ΔE 24.4 from the original
Tritanopia#5A7569no blue cones; rare, and affects men and women equally; ΔE 45.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.94:1WCAG large text: AAA
Contrast with black, large text4.25:1WCAG large text: AA

Named colours

Olivedrab · ΔE 8Olive · ΔE 18.8Dark olivegreen · ΔE 19Dark green · ΔE 19.5Forest green · ΔE 21.9Green · ΔE 24
Nearest named CSS colourOlivedrab (#6B8E23)ΔE 8.04, clearly different but related
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B177B
Analogous#7B6D17, #257B17
Triadic#17577B, #7B1757
Split complementary#17257B, #6D177B
Tetradic#177B6D, #3B177B, #7B1725

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BEE678
Lighter +30%#AADE4D
Lighter +20%#94D127
Lighter +10%#75A61F
Darker −10%#39500F
Darker −20%#1A2507
Darker −30%#000000
Darker −40%#000000
More saturated +25%#5C8D05
Less saturated −25%#526929

Channel breakdown

R87
G123
B23
Red87 (34.1%)
Green123 (48.2%)
Blue23 (9%)
Hue81.6°
Saturation (HSL)68.49%
Lightness28.63%
Dominant channelGreen
Hex per channelR 57 · G 7B · B 17

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Every value on this page was computed from “577b17” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.