Recognised as Colour

#AA0919

#AA0919
Red
Dark
Nearest: Firebrick

#AA0919 is a red with RGB values 170, 9, 25 and HSL 354°, 90%, 35%. 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

#AA0919#AA0919

HEX#AA0919

RGBrgb(170, 9, 25)

RGB (0–1)0.6667, 0.0353, 0.098

RGB percentages66.7%, 3.5%, 9.8%

HSLhsl(354, 89.9%, 35.1%)

HSV / HSBhsv(354, 94.7%, 66.7%)

CMYK0%, 94.7%, 85.3%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,143,449

CSS custom property--colour: #AA0919;

Brightness & contrast

Relative luminance0.08812WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.6:1

Contrast with white7.6:1WCAG normal text: AAA

Contrast with black2.76:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#55F6E6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#463F17no red cones; affects about 1% of men; ΔE 63.4 from the original

Deuteranopia#6B5F0Fno green cones; the most common form, about 1% of men; ΔE 62.8 from the original

Tritanopia#BC0013no blue cones; rare, and affects men and women equally; ΔE 9.9 from the original

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

Contrast with white, large text7.6:1WCAG large text: AAA

Contrast with black, large text2.76:1WCAG large text: Fail

Named colours

Firebrick · ΔE 4.4 Dark red · ΔE 10.9 Brown · ΔE 12.1 Maroon · ΔE 14.5 Crimson · ΔE 17.7 Tomato · ΔE 27.7

Nearest named CSS colourFirebrick (#B22222)ΔE 4.4, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#09AA9A

Analogous#AA096A, #AA4909

Triadic#19AA09, #0919AA

Split complementary#09AA49, #096AAA

Tetradic#6AAA09, #09AA9A, #4909AA

Tints, shades & saturation

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

Lighter +40%#F98692

Lighter +30%#F65666

Lighter +20%#F3263A

Lighter +10%#DA0C20

Darker −10%#7A0612

Darker −20%#49040B

Darker −30%#190104

Darker −40%#000000

More saturated +25%#B30012

Less saturated −25%#941F2B

Channel breakdown

R170

B25

Red170 (66.7%)

Green9 (3.5%)

Blue25 (9.8%)

Hue354.04°

Saturation (HSL)89.94%

Lightness35.1%

Dominant channelRed

Hex per channelR AA · G 09 · B 19

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#AA0919

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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