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Recognised as Colour

#A66804

  • #A66804
  • Orange
  • Dark
  • Nearest: Dark goldenrod

#A66804 is a orange with RGB values 166, 104, 4 and HSL 37°, 95%, 33%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.

Colour values

#A66804#A66804
HEX#A66804
RGBrgb(166, 104, 4)
RGB (0–1)0.651, 0.4078, 0.0157
RGB percentages65.1%, 40.8%, 1.6%
HSLhsl(37, 95.3%, 33.3%)
HSV / HSBhsv(37, 97.6%, 65.1%)
CMYK0%, 37.3%, 97.6%, 34.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,905,604
CSS custom property--colour: #A66804;

Brightness & contrast

Relative luminance0.18016WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.6:1
Contrast with white4.56:1WCAG normal text: AA
Contrast with black4.6:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#5997FB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7D6D00no red cones; affects about 1% of men; ΔE 22.8 from the original
Deuteranopia#8B7C09no green cones; the most common form, about 1% of men; ΔE 23.9 from the original
Tritanopia#B65958no blue cones; rare, and affects men and women equally; ΔE 42.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.56:1WCAG large text: AAA
Contrast with black, large text4.6:1WCAG large text: AAA

Named colours

Dark goldenrod · ΔE 14.5Peru · ΔE 15Chocolate · ΔE 19.7Saddle brown · ΔE 20.9Sienna · ΔE 23.9Sandy brown · ΔE 26.6
Nearest named CSS colourDark goldenrod (#B8860B)ΔE 14.53, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0442A6
Analogous#A61704, #93A604
Triadic#04A668, #6804A6
Split complementary#0493A6, #1704A6
Tetradic#04A617, #0442A6, #A60493

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FCCA7A
Lighter +30%#FBB648
Lighter +20%#F9A317
Lighter +10%#D88705
Darker −10%#744903
Darker −20%#422A02
Darker −30%#110A00
Darker −40%#000000
More saturated +25%#AA6900
Less saturated −25%#916319

Channel breakdown

R166
G104
B4
Red166 (65.1%)
Green104 (40.8%)
Blue4 (1.6%)
Hue37.04°
Saturation (HSL)95.29%
Lightness33.33%
Dominant channelRed
Hex per channelR A6 · G 68 · B 04

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Every value on this page was computed from “a66804” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.