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Colour

#665B20

  • #665B20
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#665B20 is a yellow with RGB values 102, 91, 32 and HSL 51°, 52%, 26%. 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

#665B20#665B20
HEX#665B20
RGBrgb(102, 91, 32)
RGB (0–1)0.4, 0.3569, 0.1255
RGB percentages40%, 35.7%, 12.5%
HSLhsl(50.6, 52.2%, 26.3%)
HSV / HSBhsv(50.6, 68.6%, 40%)
CMYK0%, 10.8%, 68.6%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,708,000
CSS custom property--colour: #665B20;

Brightness & contrast

Relative luminance0.10411WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.81:1
Contrast with white6.81:1WCAG normal text: AA
Contrast with black3.08:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#99A4DF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#645919no red cones; affects about 1% of men; ΔE 2.5 from the original
Deuteranopia#675D23no green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#6E544Fno blue cones; rare, and affects men and women equally; ΔE 30.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.81:1WCAG large text: AAA
Contrast with black, large text3.08:1WCAG large text: AA

Named colours

Dark olivegreen · ΔE 16.4Olive · ΔE 27.6Saddle brown · ΔE 30.5Sienna · ΔE 33.1Olivedrab · ΔE 33.3Dim grey · ΔE 35.2
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 16.4, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#202B66
Analogous#663820, #4E6620
Triadic#20665B, #5B2066
Split complementary#204E66, #382066
Tetradic#206638, #202B66, #66204E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6C87C
Lighter +30%#CAB755
Lighter +20%#B4A038
Lighter +10%#8D7E2C
Darker −10%#3F3814
Darker −20%#181608
Darker −30%#000000
Darker −40%#000000
More saturated +25%#77660F
Less saturated −25%#555031

Channel breakdown

R102
G91
B32
Red102 (40%)
Green91 (35.7%)
Blue32 (12.5%)
Hue50.57°
Saturation (HSL)52.24%
Lightness26.27%
Dominant channelRed
Hex per channelR 66 · G 5B · B 20

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Every value on this page was computed from “665b20” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.