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Recognised as Colour

#666F22

  • #666F22
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#666F22 is a yellow with RGB values 102, 111, 34 and HSL 67°, 53%, 28%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#666F22#666F22
HEX#666F22
RGBrgb(102, 111, 34)
RGB (0–1)0.4, 0.4353, 0.1333
RGB percentages40%, 43.5%, 13.3%
HSLhsl(67, 53.1%, 28.4%)
HSV / HSBhsv(67, 69.4%, 43.5%)
CMYK8.1%, 0%, 69.4%, 56.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,713,122
CSS custom property--colour: #666F22;

Brightness & contrast

Relative luminance0.14309WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.44:1
Contrast with white5.44:1WCAG normal text: AA
Contrast with black3.86:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#9990DD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#776917no red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#766A28no green cones; the most common form, about 1% of men; ΔE 10.9 from the original
Tritanopia#6D695Fno blue cones; rare, and affects men and women equally; ΔE 36.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.44:1WCAG large text: AAA
Contrast with black, large text3.86:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 10.6Olive · ΔE 18.2Olivedrab · ΔE 19.5Dark khaki · ΔE 29.3Dark green · ΔE 30.1Sea green · ΔE 32.8
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 10.6, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2B226F
Analogous#6F5222, #3F6F22
Triadic#22666F, #6F2266
Split complementary#22406F, #51226F
Tetradic#226F51, #2B226F, #6F2240

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFD984
Lighter +30%#C0CD5D
Lighter +20%#AEBD3A
Lighter +10%#8A962E
Darker −10%#424816
Darker −20%#1E210A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#748110
Less saturated −25%#585D34

Channel breakdown

R102
G111
B34
Red102 (40%)
Green111 (43.5%)
Blue34 (13.3%)
Hue67.01°
Saturation (HSL)53.1%
Lightness28.43%
Dominant channelGreen
Hex per channelR 66 · G 6F · B 22

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Every value on this page was computed from “666f22” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.