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Colour

#665B16

  • #665B16
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#665B16 is a yellow with RGB values 102, 91, 22 and HSL 52°, 65%, 24%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#665B16#665B16
HEX#665B16
RGBrgb(102, 91, 22)
RGB (0–1)0.4, 0.3569, 0.0863
RGB percentages40%, 35.7%, 8.6%
HSLhsl(51.8, 64.5%, 24.3%)
HSV / HSBhsv(51.8, 78.4%, 40%)
CMYK0%, 10.8%, 78.4%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,707,990
CSS custom property--colour: #665B16;

Brightness & contrast

Relative luminance0.10365WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.83:1
Contrast with white6.83:1WCAG normal text: AA
Contrast with black3.07:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#99A4E9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#64580Ano red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#675C1Bno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#6E544Eno blue cones; rare, and affects men and women equally; ΔE 34.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.83:1WCAG large text: AAA
Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 17.5Olive · ΔE 24Saddle brown · ΔE 30.5Olivedrab · ΔE 31.1Sienna · ΔE 33.8Dark goldenrod · ΔE 34.4
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 17.48, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#162166
Analogous#663316, #496616
Triadic#16665B, #5B1666
Split complementary#164966, #331666
Tetradic#166633, #162166, #661649

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DFCF69
Lighter +30%#D6C13F
Lighter +20%#BAA628
Lighter +10%#90801F
Darker −10%#3C360D
Darker −20%#121004
Darker −30%#000000
Darker −40%#000000
More saturated +25%#766607
Less saturated −25%#575026

Channel breakdown

R102
G91
B22
Red102 (40%)
Green91 (35.7%)
Blue22 (8.6%)
Hue51.75°
Saturation (HSL)64.52%
Lightness24.31%
Dominant channelRed
Hex per channelR 66 · G 5B · B 16

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Every value on this page was computed from “665b16” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.