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Recognised as Colour

#A78B00

  • #A78B00
  • Yellow
  • Dark
  • Nearest: Dark goldenrod

#A78B00 is a yellow with RGB values 167, 139, 0 and HSL 50°, 100%, 33%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.

Colour values

#A78B00#A78B00
HEX#A78B00
RGBrgb(167, 139, 0)
RGB (0–1)0.6549, 0.5451, 0
RGB percentages65.5%, 54.5%, 0%
HSLhsl(49.9, 100%, 32.7%)
HSV / HSBhsv(49.9, 100%, 65.5%)
CMYK0%, 16.8%, 100%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,980,096
CSS custom property--colour: #A78B00;

Brightness & contrast

Relative luminance0.26681WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.34:1
Contrast with white3.31:1WCAG normal text: Fail
Contrast with black6.34:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#5874FF

Colour vision & accessibility

Protanopia#9C8800no red cones; affects about 1% of men; ΔE 4.4 from the original
Deuteranopia#A39113no green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#B67E76no blue cones; rare, and affects men and women equally; ΔE 54.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.31:1WCAG large text: AA
Contrast with black, large text6.34:1WCAG large text: AAA

Named colours

Nearest named CSS colourDark goldenrod (#B8860B)ΔE 10.7, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#001CA7
Analogous#A73700, #70A700
Triadic#00A78B, #8B00A7
Split complementary#006FA7, #3800A7
Tetradic#00A737, #001CA7, #A7006F

Tints, shades & saturation

Lighter +40%#FFE874
Lighter +30%#FFDF41
Lighter +20%#FFD70E
Lighter +10%#DAB500
Darker −10%#746100
Darker −20%#413600
Darker −30%#0E0C00
Darker −40%#000000
More saturated +25%#A78B00
Less saturated −25%#927D15

Channel breakdown

R167
G139
B0
Red167 (65.5%)
Green139 (54.5%)
Blue0 (0%)
Hue49.94°
Saturation (HSL)100%
Lightness32.75%
Dominant channelRed
Hex per channelR A7 · G 8B · B 00

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Every value on this page was computed from “a78b00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.