Recognised as Colour

#AC0001

#AC0001
Red
Dark
Nearest: Firebrick

#AC0001 is a red with RGB values 172, 0, 1 and HSL 360°, 100%, 34%. 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

#AC0001#AC0001

HEX#AC0001

RGBrgb(172, 0, 1)

RGB (0–1)0.6745, 0, 0.0039

RGB percentages67.5%, 0%, 0.4%

HSLhsl(359.7, 100%, 33.7%)

HSV / HSBhsv(359.7, 100%, 67.5%)

CMYK0%, 100%, 99.4%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,272,193

CSS custom property--colour: #AC0001;

Brightness & contrast

Relative luminance0.08773WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.62:1

Contrast with white7.62:1WCAG normal text: AAA

Contrast with black2.75:1WCAG normal text: Fail

Greyscale equivalent#252525

Inverted#53FFFE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#473D00no red cones; affects about 1% of men; ΔE 64.5 from the original

Deuteranopia#6D5F00no green cones; the most common form, about 1% of men; ΔE 63.4 from the original

Tritanopia#BE0007no blue cones; rare, and affects men and women equally; ΔE 6.4 from the original

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

Contrast with white, large text7.62:1WCAG large text: AAA

Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Firebrick · ΔE 12.9 Dark red · ΔE 14 Maroon · ΔE 19.1 Brown · ΔE 21.5 Crimson · ΔE 22.6 Tomato · ΔE 26.9

Nearest named CSS colourFirebrick (#B22222)ΔE 12.9, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00ACAB

Analogous#AC0057, #AC5500

Triadic#01AC00, #0001AC

Split complementary#00AC55, #0057AC

Tetradic#57AC00, #00ACAB, #5500AC

Tints, shades & saturation

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

Lighter +40%#FF797A

Lighter +30%#FF4647

Lighter +20%#FF1314

Lighter +10%#DF0001

Darker −10%#790001

Darker −20%#460000

Darker −30%#130000

Darker −40%#000000

More saturated +25%#AC0001

Less saturated −25%#971616

Channel breakdown

R172

Red172 (67.5%)

Green0 (0%)

Blue1 (0.4%)

Hue359.65°

Saturation (HSL)100%

Lightness33.73%

Dominant channelRed

Hex per channelR AC · G 00 · B 01

Keep nerding

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

#AC0001

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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