Recognised as Colour

#AD2C25

#AD2C25
Red
Dark
Nearest: Firebrick

#AD2C25 is a red with RGB values 173, 44, 37 and HSL 3°, 65%, 41%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AD2C25#AD2C25

HEX#AD2C25

RGBrgb(173, 44, 37)

RGB (0–1)0.6784, 0.1725, 0.1451

RGB percentages67.8%, 17.3%, 14.5%

HSLhsl(3.1, 64.8%, 41.2%)

HSV / HSBhsv(3.1, 78.6%, 67.8%)

CMYK0%, 74.6%, 78.6%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,349,029

CSS custom property--colour: #AD2C25;

Brightness & contrast

Relative luminance0.10819WCAG 2.x, 0 is black and 1 is white

Perceived brightness101.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.64:1

Contrast with white6.64:1WCAG normal text: AA

Contrast with black3.16:1WCAG normal text: Fail

Greyscale equivalent#474747

Inverted#52D3DA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#534B23no red cones; affects about 1% of men; ΔE 55.7 from the original

Deuteranopia#73671Fno green cones; the most common form, about 1% of men; ΔE 55.8 from the original

Tritanopia#BF002Cno blue cones; rare, and affects men and women equally; ΔE 14.1 from the original

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

Contrast with white, large text6.64:1WCAG large text: AAA

Contrast with black, large text3.16:1WCAG large text: AA

Named colours

Firebrick · ΔE 4.9 Brown · ΔE 5.8 Dark red · ΔE 12.5 Maroon · ΔE 14.3 Indian red · ΔE 20.7 Crimson · ΔE 21.2

Nearest named CSS colourFirebrick (#B22222)ΔE 4.93, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#25A6AD

Analogous#AD2562, #AD7025

Triadic#25AD2C, #2C25AD

Split complementary#25AD70, #2562AD

Tetradic#62AD25, #25A6AD, #7025AD

Tints, shades & saturation

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

Lighter +40%#EEB3B0

Lighter +30%#E58B86

Lighter +20%#DC625C

Lighter +10%#D33A32

Darker −10%#83211C

Darker −20%#591713

Darker −30%#2F0C0A

Darker −40%#050101

More saturated +25%#C7140B

Less saturated −25%#93443F

Channel breakdown

R173

G44

B37

Red173 (67.8%)

Green44 (17.3%)

Blue37 (14.5%)

Hue3.09°

Saturation (HSL)64.76%

Lightness41.18%

Dominant channelRed

Hex per channelR AD · G 2C · B 25

Keep nerding

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

#AD2C25

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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