Recognised as Colour

#AC0027

#AC0027
Red
Dark
Nearest: Firebrick

#AC0027 is a red with RGB values 172, 0, 39 and HSL 346°, 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

#AC0027#AC0027

HEX#AC0027

RGBrgb(172, 0, 39)

RGB (0–1)0.6745, 0, 0.1529

RGB percentages67.5%, 0%, 15.3%

HSLhsl(346.4, 100%, 33.7%)

HSV / HSBhsv(346.4, 100%, 67.5%)

CMYK0%, 100%, 77.3%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,272,231

CSS custom property--colour: #AC0027;

Brightness & contrast

Relative luminance0.08917WCAG 2.x, 0 is black and 1 is white

Perceived brightness95 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.54:1

Contrast with white7.54:1WCAG normal text: AAA

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

Greyscale equivalent#272727

Inverted#53FFD8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#453F26no red cones; affects about 1% of men; ΔE 64.5 from the original

Deuteranopia#6B6020no green cones; the most common form, about 1% of men; ΔE 64.7 from the original

Tritanopia#BE0016no blue cones; rare, and affects men and women equally; ΔE 15.5 from the original

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

Contrast with white, large text7.54:1WCAG large text: AAA

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

Named colours

Firebrick · ΔE 8.8 Brown · ΔE 10.8 Crimson · ΔE 15.6 Dark red · ΔE 16 Maroon · ΔE 17.6 Indian red · ΔE 25

Nearest named CSS colourFirebrick (#B22222)ΔE 8.78, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00AC85

Analogous#AC007D, #AC2F00

Triadic#27AC00, #0027AC

Split complementary#00AC2F, #007DAC

Tetradic#7DAC00, #00AC85, #2F00AC

Tints, shades & saturation

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

Lighter +40%#FF7997

Lighter +30%#FF4670

Lighter +20%#FF1349

Lighter +10%#DF0033

Darker −10%#79001B

Darker −20%#460010

Darker −30%#130004

Darker −40%#000000

More saturated +25%#AC0027

Less saturated −25%#971633

Channel breakdown

R172

B39

Red172 (67.5%)

Green0 (0%)

Blue39 (15.3%)

Hue346.4°

Saturation (HSL)100%

Lightness33.73%

Dominant channelRed

Hex per channelR AC · G 00 · B 27

Keep nerding

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

#AC0027

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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