Recognised as Colour

#AC001E

#AC001E
Red
Dark
Nearest: Firebrick

#AC001E is a red with RGB values 172, 0, 30 and HSL 350°, 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

#AC001E#AC001E

HEX#AC001E

RGBrgb(172, 0, 30)

RGB (0–1)0.6745, 0, 0.1176

RGB percentages67.5%, 0%, 11.8%

HSLhsl(349.5, 100%, 33.7%)

HSV / HSBhsv(349.5, 100%, 67.5%)

CMYK0%, 100%, 82.6%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,272,222

CSS custom property--colour: #AC001E;

Brightness & contrast

Relative luminance0.08864WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.57:1

Contrast with white7.57:1WCAG normal text: AAA

Contrast with black2.77:1WCAG normal text: Fail

Greyscale equivalent#272727

Inverted#53FFE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#453E1Dno red cones; affects about 1% of men; ΔE 64.8 from the original

Deuteranopia#6C6015no green cones; the most common form, about 1% of men; ΔE 64.5 from the original

Tritanopia#BE0012no blue cones; rare, and affects men and women equally; ΔE 12.4 from the original

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

Contrast with white, large text7.57:1WCAG large text: AAA

Contrast with black, large text2.77:1WCAG large text: Fail

Named colours

Firebrick · ΔE 5.6 Brown · ΔE 12 Dark red · ΔE 13 Crimson · ΔE 15.8 Maroon · ΔE 15.9 Indian red · ΔE 27.3

Nearest named CSS colourFirebrick (#B22222)ΔE 5.61, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00AC8E

Analogous#AC0074, #AC3800

Triadic#1EAC00, #001EAC

Split complementary#00AC38, #0074AC

Tetradic#74AC00, #00AC8E, #3800AC

Tints, shades & saturation

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

Lighter +40%#FF7990

Lighter +30%#FF4666

Lighter +20%#FF133C

Lighter +10%#DF0027

Darker −10%#790015

Darker −20%#46000C

Darker −30%#130003

Darker −40%#000000

More saturated +25%#AC001E

Less saturated −25%#97162C

Channel breakdown

R172

B30

Red172 (67.5%)

Green0 (0%)

Blue30 (11.8%)

Hue349.53°

Saturation (HSL)100%

Lightness33.73%

Dominant channelRed

Hex per channelR AC · G 00 · B 1E

Keep nerding

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

#AC001E

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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