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Recognised as Colour

#A9B321

  • #A9B321
  • Yellow
  • Dark
  • Nearest: Yellow green

#A9B321 is a yellow with RGB values 169, 179, 33 and HSL 64°, 69%, 42%. It is a dark colour, so black text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Yellow green.

Colour values

#A9B321#A9B321
HEX#A9B321
RGBrgb(169, 179, 33)
RGB (0–1)0.6627, 0.702, 0.1294
RGB percentages66.3%, 70.2%, 12.9%
HSLhsl(64.1, 68.9%, 41.6%)
HSV / HSBhsv(64.1, 81.6%, 70.2%)
CMYK5.6%, 0%, 81.6%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,121,441
CSS custom property--colour: #A9B321;

Brightness & contrast

Relative luminance0.40785WCAG 2.x, 0 is black and 1 is white
Perceived brightness165.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.16:1
Contrast with white2.29:1WCAG normal text: Fail
Contrast with black9.16:1WCAG normal text: AAA
Greyscale equivalent#A6A6A6
Inverted#564CDE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C1AA00no red cones; affects about 1% of men; ΔE 15.8 from the original
Deuteranopia#C1AC30no green cones; the most common form, about 1% of men; ΔE 15.1 from the original
Tritanopia#B5A899no blue cones; rare, and affects men and women equally; ΔE 60.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.29:1WCAG large text: Fail
Contrast with black, large text9.16:1WCAG large text: AAA

Named colours

Yellow green · ΔE 18.9Olive · ΔE 21.7Olivedrab · ΔE 23.8Goldenrod · ΔE 28.9Dark khaki · ΔE 29.3Khaki · ΔE 31.3
Nearest named CSS colourYellow green (#9ACD32)ΔE 18.91, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2B21B3
Analogous#B37421, #60B321
Triadic#21A9B3, #B321A9
Split complementary#2160B3, #7421B3
Tetradic#21B374, #2B21B3, #B32160

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECF0B0
Lighter +30%#E2E885
Lighter +20%#D7E05A
Lighter +10%#CDD92E
Darker −10%#808819
Darker −20%#585D11
Darker −30%#2F3209
Darker −40%#060701
More saturated +25%#C0CD07
Less saturated −25%#92983C

Channel breakdown

R169
G179
B33
Red169 (66.3%)
Green179 (70.2%)
Blue33 (12.9%)
Hue64.11°
Saturation (HSL)68.87%
Lightness41.57%
Dominant channelGreen
Hex per channelR A9 · G B3 · B 21

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Every value on this page was computed from “a9b321” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.