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Recognised as Colour

#665A09

  • #665A09
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#665A09 is a yellow with RGB values 102, 90, 9 and HSL 52°, 84%, 22%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#665A09#665A09
HEX#665A09
RGBrgb(102, 90, 9)
RGB (0–1)0.4, 0.3529, 0.0353
RGB percentages40%, 35.3%, 3.5%
HSLhsl(52.3, 83.8%, 21.8%)
HSV / HSBhsv(52.3, 91.2%, 40%)
CMYK0%, 11.8%, 91.2%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,707,721
CSS custom property--colour: #665A09;

Brightness & contrast

Relative luminance0.10157WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.93:1
Contrast with white6.93:1WCAG normal text: AA
Contrast with black3.03:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#99A5F6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#645700no red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#675C11no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#6F524Cno blue cones; rare, and affects men and women equally; ΔE 37.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.93:1WCAG large text: AAA
Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 19.9Olive · ΔE 21.4Olivedrab · ΔE 30.2Saddle brown · ΔE 30.4Dark goldenrod · ΔE 32Sienna · ΔE 34.4
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 19.88, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#091566
Analogous#662B09, #446609
Triadic#09665A, #5A0966
Split complementary#094466, #2C0966
Tetradic#09662B, #091566, #660943

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFDA4C
Lighter +30%#EBD01D
Lighter +20%#C4AD11
Lighter +10%#95830D
Darker −10%#373105
Darker −20%#080701
Darker −30%#000000
Darker −40%#000000
More saturated +25%#6F6100
Less saturated −25%#585017

Channel breakdown

R102
G90
B9
Red102 (40%)
Green90 (35.3%)
Blue9 (3.5%)
Hue52.26°
Saturation (HSL)83.78%
Lightness21.76%
Dominant channelRed
Hex per channelR 66 · G 5A · B 09

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Every value on this page was computed from “665a09” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.