Colour
#ACA31A
- #ACA31A
- Yellow
- Dark
- Nearest: Olive
#ACA31A is a yellow with RGB values 172, 163, 26 and HSL 56°, 74%, 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
#ACA31A#ACA31A
HEX#ACA31A
RGBrgb(172, 163, 26)
RGB (0–1)0.6745, 0.6392, 0.102
RGB percentages67.5%, 63.9%, 10.2%
HSLhsl(56.3, 73.7%, 38.8%)
HSV / HSBhsv(56.3, 84.9%, 67.5%)
CMYK0%, 5.2%, 84.9%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,313,946
CSS custom property--colour: #ACA31A;
Brightness & contrast
Relative luminance0.3504WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.01:1
Contrast with white2.62:1WCAG normal text: Fail
Contrast with black8.01:1WCAG normal text: AAA
Greyscale equivalent#9B9B9B
Inverted#535CE5
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.62:1WCAG large text: Fail
Contrast with black, large text8.01:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1A23AC
Analogous#AC5A1A, #6CAC1A
Triadic#1AACA3, #A31AAC
Split complementary#1A6CAC, #5A1AAC
Tetradic#1AAC5A, #1A23AC, #AC1A6C
Tints, shades & saturation
Channel breakdown
R172
G163
B26
Red172 (67.5%)
Green163 (63.9%)
Blue26 (10.2%)
Hue56.3°
Saturation (HSL)73.74%
Lightness38.82%
Dominant channelRed
Hex per channelR AC · G A3 · B 1A
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