Colour
#ACBB51
- #ACBB51
- Yellow
- Dark
- Nearest: Dark khaki
#ACBB51 is a yellow with RGB values 172, 187, 81 and HSL 68°, 44%, 53%. It is a dark colour, so black text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark khaki.
Colour values
#ACBB51#ACBB51
HEX#ACBB51
RGBrgb(172, 187, 81)
RGB (0–1)0.6745, 0.7333, 0.3176
RGB percentages67.5%, 73.3%, 31.8%
HSLhsl(68.5, 43.8%, 52.5%)
HSV / HSBhsv(68.5, 56.7%, 73.3%)
CMYK8%, 0%, 56.7%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,320,145
CSS custom property--colour: #ACBB51;
Brightness & contrast
Relative luminance0.44905WCAG 2.x, 0 is black and 1 is white
Perceived brightness173.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.98:1
Contrast with white2.1:1WCAG normal text: Fail
Contrast with black9.98:1WCAG normal text: AAA
Greyscale equivalent#B0B0B0
Inverted#5344AE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.1:1WCAG large text: Fail
Contrast with black, large text9.98:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#6051BB
Analogous#BB9551, #77BB51
Triadic#51ACBB, #BB51AC
Split complementary#5177BB, #9551BB
Tetradic#51BB95, #6051BB, #BB5177
Tints, shades & saturation
Channel breakdown
R172
G187
B81
Red172 (67.5%)
Green187 (73.3%)
Blue81 (31.8%)
Hue68.49°
Saturation (HSL)43.8%
Lightness52.55%
Dominant channelGreen
Hex per channelR AC · G BB · B 51
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