Recognised as Colour

#AC002B

#AC002B
Red
Dark
Nearest: Firebrick

#AC002B is a red with RGB values 172, 0, 43 and HSL 345°, 100%, 34%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#AC002B#AC002B

HEX#AC002B

RGBrgb(172, 0, 43)

RGB (0–1)0.6745, 0, 0.1686

RGB percentages67.5%, 0%, 16.9%

HSLhsl(345, 100%, 33.7%)

HSV / HSBhsv(345, 100%, 67.5%)

CMYK0%, 100%, 75%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,272,235

CSS custom property--colour: #AC002B;

Brightness & contrast

Relative luminance0.08945WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.53:1

Contrast with white7.53:1WCAG normal text: AAA

Contrast with black2.79:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#53FFD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443F2Bno red cones; affects about 1% of men; ΔE 64.6 from the original

Deuteranopia#6B6025no green cones; the most common form, about 1% of men; ΔE 64.5 from the original

Tritanopia#BE0018no blue cones; rare, and affects men and women equally; ΔE 16.8 from the original

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

Contrast with white, large text7.53:1WCAG large text: AAA

Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Firebrick · ΔE 10.8 Brown · ΔE 11.2 Crimson · ΔE 16.1 Dark red · ΔE 17.8 Maroon · ΔE 18.9 Indian red · ΔE 24.4

Nearest named CSS colourFirebrick (#B22222)ΔE 10.81, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00AC81

Analogous#AC0081, #AC2B00

Triadic#2BAC00, #002BAC

Split complementary#00AC2B, #0081AC

Tetradic#81AC00, #00AC81, #2B00AC

Tints, shades & saturation

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

Lighter +40%#FF799A

Lighter +30%#FF4674

Lighter +20%#FF134E

Lighter +10%#DF0038

Darker −10%#79001E

Darker −20%#460012

Darker −30%#130005

Darker −40%#000000

More saturated +25%#AC002B

Less saturated −25%#971636

Channel breakdown

R172

B43

Red172 (67.5%)

Green0 (0%)

Blue43 (16.9%)

Hue345°

Saturation (HSL)100%

Lightness33.73%

Dominant channelRed

Hex per channelR AC · G 00 · B 2B

Keep nerding

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

#AC002B

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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