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Colour

#646F22

  • #646F22
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#646F22 is a yellow with RGB values 100, 111, 34 and HSL 69°, 53%, 28%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#646F22#646F22
HEX#646F22
RGBrgb(100, 111, 34)
RGB (0–1)0.3922, 0.4353, 0.1333
RGB percentages39.2%, 43.5%, 13.3%
HSLhsl(68.6, 53.1%, 28.4%)
HSV / HSBhsv(68.6, 69.4%, 43.5%)
CMYK9.9%, 0%, 69.4%, 56.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,582,050
CSS custom property--colour: #646F22;

Brightness & contrast

Relative luminance0.14194WCAG 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 5.47:1
Contrast with white5.47:1WCAG normal text: AA
Contrast with black3.84:1WCAG normal text: Fail
Greyscale equivalent#676767
Inverted#9B90DD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#776917no red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#766A28no green cones; the most common form, about 1% of men; ΔE 11.8 from the original
Tritanopia#6A695Fno 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 text5.47:1WCAG large text: AAA
Contrast with black, large text3.84:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 10Olive · ΔE 18.6Olivedrab · ΔE 19.1Dark green · ΔE 29.2Dark khaki · ΔE 29.6Sea green · ΔE 32
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 10.03, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2D226F
Analogous#6F5322, #3E6F22
Triadic#22646F, #6F2264
Split complementary#223E6F, #53226F
Tetradic#226F53, #2D226F, #6F223E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDD984
Lighter +30%#BDCD5D
Lighter +20%#AABD3A
Lighter +10%#87962E
Darker −10%#414816
Darker −20%#1E210A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#718110
Less saturated −25%#575D34

Channel breakdown

R100
G111
B34
Red100 (39.2%)
Green111 (43.5%)
Blue34 (13.3%)
Hue68.57°
Saturation (HSL)53.1%
Lightness28.43%
Dominant channelGreen
Hex per channelR 64 · G 6F · B 22

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Every value on this page was computed from “646f22” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.