Recognised as Colour

#AA182F

#AA182F
Red
Dark
Nearest: Brown

#AA182F is a red with RGB values 170, 24, 47 and HSL 351°, 75%, 38%. It is a dark colour, so white text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#AA182F#AA182F

HEX#AA182F

RGBrgb(170, 24, 47)

RGB (0–1)0.6667, 0.0941, 0.1843

RGB percentages66.7%, 9.4%, 18.4%

HSLhsl(350.5, 75.3%, 38%)

HSV / HSBhsv(350.5, 85.9%, 66.7%)

CMYK0%, 85.9%, 72.4%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,147,311

CSS custom property--colour: #AA182F;

Brightness & contrast

Relative luminance0.09405WCAG 2.x, 0 is black and 1 is white

Perceived brightness96.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.29:1

Contrast with white7.29:1WCAG normal text: AAA

Contrast with black2.88:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#55E7D0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#48432Fno red cones; affects about 1% of men; ΔE 60.4 from the original

Deuteranopia#6C612Ano green cones; the most common form, about 1% of men; ΔE 60.2 from the original

Tritanopia#BB0023no blue cones; rare, and affects men and women equally; ΔE 13.3 from the original

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

Contrast with white, large text7.29:1WCAG large text: AAA

Contrast with black, large text2.88:1WCAG large text: Fail

Named colours

Brown · ΔE 7.9 Firebrick · ΔE 11.1 Dark red · ΔE 17.8 Maroon · ΔE 18 Crimson · ΔE 18.9 Indian red · ΔE 20.9

Nearest named CSS colourBrown (#A52A2A)ΔE 7.88, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18AA93

Analogous#AA1878, #AA4A18

Triadic#2FAA18, #182FAA

Split complementary#18AA4A, #1878AA

Tetradic#78AA18, #18AA93, #4A18AA

Tints, shades & saturation

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

Lighter +40%#F19DAA

Lighter +30%#EB7083

Lighter +20%#E5435D

Lighter +10%#D71E3B

Darker −10%#7D1223

Darker −20%#510B16

Darker −30%#24050A

Darker −40%#000000

More saturated +25%#C2001F

Less saturated −25%#923040

Channel breakdown

R170

G24

B47

Red170 (66.7%)

Green24 (9.4%)

Blue47 (18.4%)

Hue350.55°

Saturation (HSL)75.26%

Lightness38.04%

Dominant channelRed

Hex per channelR AA · G 18 · B 2F

Keep nerding

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

#AA182F

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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