Recognised as Colour

#AC050B

#AC050B
Red
Dark
Nearest: Firebrick

#AC050B is a red with RGB values 172, 5, 11 and HSL 358°, 94%, 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

#AC050B#AC050B

HEX#AC050B

RGBrgb(172, 5, 11)

RGB (0–1)0.6745, 0.0196, 0.0431

RGB percentages67.5%, 2%, 4.3%

HSLhsl(357.8, 94.4%, 34.7%)

HSV / HSBhsv(357.8, 97.1%, 67.5%)

CMYK0%, 97.1%, 93.6%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,273,483

CSS custom property--colour: #AC050B;

Brightness & contrast

Relative luminance0.08903WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.55:1

Contrast with white7.55:1WCAG normal text: AAA

Contrast with black2.78:1WCAG normal text: Fail

Greyscale equivalent#292929

Inverted#53FAF4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#473E06no red cones; affects about 1% of men; ΔE 64 from the original

Deuteranopia#6D6000no green cones; the most common form, about 1% of men; ΔE 63.5 from the original

Tritanopia#BE000Dno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original

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

Contrast with white, large text7.55:1WCAG large text: AAA

Contrast with black, large text2.78:1WCAG large text: Fail

Named colours

Firebrick · ΔE 9.2 Dark red · ΔE 12 Maroon · ΔE 16.9 Brown · ΔE 17.9 Crimson · ΔE 20.2 Tomato · ΔE 26.4

Nearest named CSS colourFirebrick (#B22222)ΔE 9.23, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#05ACA6

Analogous#AC055F, #AC5305

Triadic#0BAC05, #050BAC

Split complementary#05AC53, #055FAC

Tetradic#5FAC05, #05ACA6, #5205AC

Tints, shades & saturation

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

Lighter +40%#FB8286

Lighter +30%#FA5056

Lighter +20%#F81F26

Lighter +10%#DE060E

Darker −10%#7A0408

Darker −20%#490205

Darker −30%#170101

Darker −40%#000000

More saturated +25%#B10006

Less saturated −25%#961B20

Channel breakdown

R172

B11

Red172 (67.5%)

Green5 (2%)

Blue11 (4.3%)

Hue357.84°

Saturation (HSL)94.35%

Lightness34.71%

Dominant channelRed

Hex per channelR AC · G 05 · B 0B

Keep nerding

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

#AC050B

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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