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Recognised as Colour

#646B4C

  • #646B4C
  • Green
  • Dark
  • Nearest: Dark olivegreen

#646B4C is a green with RGB values 100, 107, 76 and HSL 74°, 17%, 36%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#646B4C#646B4C
HEX#646B4C
RGBrgb(100, 107, 76)
RGB (0–1)0.3922, 0.4196, 0.298
RGB percentages39.2%, 42%, 29.8%
HSLhsl(73.5, 16.9%, 35.9%)
HSV / HSBhsv(73.5, 29%, 42%)
CMYK6.5%, 0%, 29%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,581,068
CSS custom property--colour: #646B4C;

Brightness & contrast

Relative luminance0.13747WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.6:1
Contrast with white5.6:1WCAG normal text: AA
Contrast with black3.75:1WCAG normal text: Fail
Greyscale equivalent#676767
Inverted#9B94B3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6F684Ano red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#6E684Dno green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#676863no blue cones; rare, and affects men and women equally; ΔE 15.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.6:1WCAG large text: AAA
Contrast with black, large text3.75:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 17.5Dim grey · ΔE 18.6Gray · ΔE 21Dark slate grey · ΔE 24.1Slate grey · ΔE 29.2Light slate grey · ΔE 30.8
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 17.53, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#534C6B
Analogous#6B634C, #556B4C
Triadic#4C646B, #6B4C64
Split complementary#4C556B, #624C6B
Tetradic#4C6B62, #534C6B, #6B4C55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7CCB7
Lighter +30%#B0B799
Lighter +20%#99A27B
Lighter +10%#808961
Darker −10%#484D37
Darker −20%#2C2F22
Darker −30%#10120C
Darker −40%#000000
More saturated +25%#718235
Less saturated −25%#5C5C5C

Channel breakdown

R100
G107
B76
Red100 (39.2%)
Green107 (42%)
Blue76 (29.8%)
Hue73.55°
Saturation (HSL)16.94%
Lightness35.88%
Dominant channelGreen
Hex per channelR 64 · G 6B · B 4C

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Every value on this page was computed from “646b4c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.