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Recognised as Colour

#AAA31F

  • #AAA31F
  • Yellow
  • Dark
  • Nearest: Olive

#AAA31F is a yellow with RGB values 170, 163, 31 and HSL 57°, 69%, 39%. It is a dark colour, so black text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Olive.

Colour values

#AAA31F#AAA31F
HEX#AAA31F
RGBrgb(170, 163, 31)
RGB (0–1)0.6667, 0.6392, 0.1216
RGB percentages66.7%, 63.9%, 12.2%
HSLhsl(57, 69.2%, 39.4%)
HSV / HSBhsv(57, 81.8%, 66.7%)
CMYK0%, 4.1%, 81.8%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,182,879
CSS custom property--colour: #AAA31F;

Brightness & contrast

Relative luminance0.34839WCAG 2.x, 0 is black and 1 is white
Perceived brightness156 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.97:1
Contrast with white2.64:1WCAG normal text: Fail
Contrast with black7.97:1WCAG normal text: AAA
Greyscale equivalent#9B9B9B
Inverted#555CE0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B29D00no red cones; affects about 1% of men; ΔE 8.1 from the original
Deuteranopia#B5A22Bno green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#B7978Bno blue cones; rare, and affects men and women equally; ΔE 56.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.64:1WCAG large text: Fail
Contrast with black, large text7.97:1WCAG large text: AAA

Named colours

Olive · ΔE 15.1Goldenrod · ΔE 21.7Dark goldenrod · ΔE 22.5Olivedrab · ΔE 23.8Dark khaki · ΔE 24.9Yellow green · ΔE 28.7
Nearest named CSS colourOlive (#808000)ΔE 15.1, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F26AA
Analogous#AA5E1F, #6BAA1F
Triadic#1FAAA3, #A31FAA
Split complementary#1F6BAA, #5E1FAA
Tetradic#1FAA5E, #1F26AA, #AA1F6B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFEBA6
Lighter +30%#E7E27B
Lighter +20%#DFD850
Lighter +10%#D5CC27
Darker −10%#7F7A17
Darker −20%#54500F
Darker −30%#292707
Darker −40%#000000
More saturated +25%#C3BA06
Less saturated −25%#918C38

Channel breakdown

R170
G163
B31
Red170 (66.7%)
Green163 (63.9%)
Blue31 (12.2%)
Hue56.98°
Saturation (HSL)69.15%
Lightness39.41%
Dominant channelRed
Hex per channelR AA · G A3 · B 1F

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Every value on this page was computed from “aaa31f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.