Colour
#AA3300
- #AA3300
- Orange
- Dark
- Nearest: Dark red
#AA3300 is a orange with RGB values 170, 51, 0 and HSL 18°, 100%, 33%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark red.
Colour values
#AA3300#AA3300
HEX#AA3300
HEX (short)#A30
RGBrgb(170, 51, 0)
RGB (0–1)0.6667, 0.2, 0
RGB percentages66.7%, 20%, 0%
HSLhsl(18, 100%, 33.3%)
HSV / HSBhsv(18, 100%, 66.7%)
CMYK0%, 70%, 100%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,154,176
CSS custom property--colour: #AA3300;
Brightness & contrast
Relative luminance0.10914WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.6:1
Contrast with white6.6:1WCAG normal text: AA
Contrast with black3.18:1WCAG normal text: Fail
Greyscale equivalent#494949
Inverted#55CCFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.6:1WCAG large text: AAA
Contrast with black, large text3.18:1WCAG large text: AA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0077AA
Analogous#AA0022, #AA8800
Triadic#00AA33, #3300AA
Split complementary#00AA88, #0022AA
Tetradic#22AA00, #0077AA, #8800AA
Tints, shades & saturation
Channel breakdown
R170
G51
B0
Red170 (66.7%)
Green51 (20%)
Blue0 (0%)
Hue18°
Saturation (HSL)100%
Lightness33.33%
Dominant channelRed
Hex per channelR AA · G 33 · B 00
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