Recognised as Colour

#AA0819

#AA0819
Red
Dark
Nearest: Firebrick

#AA0819 is a red with RGB values 170, 8, 25 and HSL 354°, 91%, 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

#AA0819#AA0819

HEX#AA0819

RGBrgb(170, 8, 25)

RGB (0–1)0.6667, 0.0314, 0.098

RGB percentages66.7%, 3.1%, 9.8%

HSLhsl(353.7, 91%, 34.9%)

HSV / HSBhsv(353.7, 95.3%, 66.7%)

CMYK0%, 95.3%, 85.3%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,143,193

CSS custom property--colour: #AA0819;

Brightness & contrast

Relative luminance0.0879WCAG 2.x, 0 is black and 1 is white

Perceived brightness93.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.61:1

Contrast with white7.61:1WCAG normal text: AAA

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

Greyscale equivalent#2C2C2C

Inverted#55F7E6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#463E17no red cones; affects about 1% of men; ΔE 63 from the original

Deuteranopia#6B5F0Fno green cones; the most common form, about 1% of men; ΔE 62.9 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 text7.61:1WCAG large text: AAA

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

Named colours

Firebrick · ΔE 4.5 Dark red · ΔE 10.9 Brown · ΔE 12.1 Maroon · ΔE 14.5 Crimson · ΔE 17.6 Tomato · ΔE 27.7

Nearest named CSS colourFirebrick (#B22222)ΔE 4.49, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#08AA99

Analogous#AA086A, #AA4808

Triadic#19AA08, #0819AA

Split complementary#08AA48, #086AAA

Tetradic#6AAA08, #08AA99, #4808AA

Tints, shades & saturation

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

Lighter +40%#F98591

Lighter +30%#F75465

Lighter +20%#F52339

Lighter +10%#DB0A20

Darker −10%#790612

Darker −20%#49030B

Darker −30%#180104

Darker −40%#000000

More saturated +25%#B20013

Less saturated −25%#941E2B

Channel breakdown

R170

B25

Red170 (66.7%)

Green8 (3.1%)

Blue25 (9.8%)

Hue353.7°

Saturation (HSL)91.01%

Lightness34.9%

Dominant channelRed

Hex per channelR AA · G 08 · B 19

Keep nerding

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

#AA0819

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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