Colour

#AA0F00

#AA0F00
Red
Dark
Nearest: Firebrick

#AA0F00 is a red with RGB values 170, 15, 0 and HSL 5°, 100%, 33%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#AA0F00#AA0F00

HEX#AA0F00

RGBrgb(170, 15, 0)

RGB (0–1)0.6667, 0.0588, 0

RGB percentages66.7%, 5.9%, 0%

HSLhsl(5.3, 100%, 33.3%)

HSV / HSBhsv(5.3, 100%, 66.7%)

CMYK0%, 91.2%, 100%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,144,960

CSS custom property--colour: #AA0F00;

Brightness & contrast

Relative luminance0.08888WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.56:1

Contrast with white7.56:1WCAG normal text: AAA

Contrast with black2.78:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#55F0FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#493F00no red cones; affects about 1% of men; ΔE 62.1 from the original

Deuteranopia#6D6000no green cones; the most common form, about 1% of men; ΔE 61.5 from the original

Tritanopia#BC0010no blue cones; rare, and affects men and women equally; ΔE 7.8 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text7.56:1WCAG large text: AAA

Contrast with black, large text2.78:1WCAG large text: Fail

Named colours

Firebrick · ΔE 12.6 Dark red · ΔE 13 Maroon · ΔE 18 Brown · ΔE 20.7 Crimson · ΔE 24 Tomato · ΔE 26.7

Nearest named CSS colourFirebrick (#B22222)ΔE 12.61, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#009BAA

Analogous#AA0046, #AA6400

Triadic#00AA0F, #0F00AA

Split complementary#00AA64, #0046AA

Tetradic#46AA00, #009BAA, #6400AA

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF8377

Lighter +30%#FF5544

Lighter +20%#FF2611

Lighter +10%#DD1400

Darker −10%#770B00

Darker −20%#440600

Darker −30%#110200

Darker −40%#000000

More saturated +25%#AA0F00

Less saturated −25%#952115

Channel breakdown

R170

G15

Red170 (66.7%)

Green15 (5.9%)

Blue0 (0%)

Hue5.29°

Saturation (HSL)100%

Lightness33.33%

Dominant channelRed

Hex per channelR AA · G 0F · B 00

Keep nerding

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#AA0F00

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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