Colour

#AA2800

#AA2800
Red
Dark
Nearest: Dark red

#AA2800 is a red with RGB values 170, 40, 0 and HSL 14°, 100%, 33%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dark red.

Colour values

#AA2800#AA2800

HEX#AA2800

RGBrgb(170, 40, 0)

RGB (0–1)0.6667, 0.1569, 0

RGB percentages66.7%, 15.7%, 0%

HSLhsl(14.1, 100%, 33.3%)

HSV / HSBhsv(14.1, 100%, 66.7%)

CMYK0%, 76.5%, 100%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,151,360

CSS custom property--colour: #AA2800;

Brightness & contrast

Relative luminance0.10064WCAG 2.x, 0 is black and 1 is white

Perceived brightness97.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.97:1

Contrast with white6.97:1WCAG normal text: AA

Contrast with black3.01:1WCAG normal text: Fail

Greyscale equivalent#414141

Inverted#55D7FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524700no red cones; affects about 1% of men; ΔE 55.7 from the original

Deuteranopia#716400no green cones; the most common form, about 1% of men; ΔE 55.7 from the original

Tritanopia#BC0023no blue cones; rare, and affects men and women equally; ΔE 18.5 from the original

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

Contrast with white, large text6.97:1WCAG large text: AAA

Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Dark red · ΔE 13.7 Firebrick · ΔE 14 Maroon · ΔE 18 Brown · ΔE 20.2 Chocolate · ΔE 23.6 Tomato · ΔE 25.6

Nearest named CSS colourDark red (#8B0000)ΔE 13.66, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0082AA

Analogous#AA002D, #AA7D00

Triadic#00AA28, #2800AA

Split complementary#00AA7D, #002DAA

Tetradic#2DAA00, #0082AA, #7D00AA

Tints, shades & saturation

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

Lighter +40%#FF9777

Lighter +30%#FF7044

Lighter +20%#FF4911

Lighter +10%#DD3400

Darker −10%#771C00

Darker −20%#441000

Darker −30%#110400

Darker −40%#000000

More saturated +25%#AA2800

Less saturated −25%#953315

Channel breakdown

R170

G40

Red170 (66.7%)

Green40 (15.7%)

Blue0 (0%)

Hue14.12°

Saturation (HSL)100%

Lightness33.33%

Dominant channelRed

Hex per channelR AA · G 28 · B 00

Keep nerding

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#AA2800

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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