Recognised as Colour

#AD0904

#AD0904
Red
Dark
Nearest: Firebrick

#AD0904 is a red with RGB values 173, 9, 4 and HSL 2°, 95%, 35%. 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

#AD0904#AD0904

HEX#AD0904

RGBrgb(173, 9, 4)

RGB (0–1)0.6784, 0.0353, 0.0157

RGB percentages67.8%, 3.5%, 1.6%

HSLhsl(1.8, 95.5%, 34.7%)

HSV / HSBhsv(1.8, 97.7%, 67.8%)

CMYK0%, 94.8%, 97.7%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,340,036

CSS custom property--colour: #AD0904;

Brightness & contrast

Relative luminance0.09088WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.45:1

Contrast with white7.45:1WCAG normal text: AAA

Contrast with black2.82:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#52F6FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#493F00no red cones; affects about 1% of men; ΔE 63.6 from the original

Deuteranopia#6E6100no green cones; the most common form, about 1% of men; ΔE 63.2 from the original

Tritanopia#C0000Eno blue cones; rare, and affects men and women equally; ΔE 7.1 from the original

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

Contrast with white, large text7.45:1WCAG large text: AAA

Contrast with black, large text2.82:1WCAG large text: Fail

Named colours

Firebrick · ΔE 11.8 Dark red · ΔE 13.5 Maroon · ΔE 18.5 Brown · ΔE 20.4 Crimson · ΔE 22.2 Tomato · ΔE 26.2

Nearest named CSS colourFirebrick (#B22222)ΔE 11.78, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04A8AD

Analogous#AD0453, #AD5E04

Triadic#04AD09, #0904AD

Split complementary#04AD5E, #0453AD

Tetradic#53AD04, #04A8AD, #5E04AD

Tints, shades & saturation

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

Lighter +40%#FC8581

Lighter +30%#FB544F

Lighter +20%#FA241D

Lighter +10%#DF0C05

Darker −10%#7B0603

Darker −20%#490402

Darker −30%#170101

Darker −40%#000000

More saturated +25%#B10500

Less saturated −25%#971E1A

Channel breakdown

R173

Red173 (67.8%)

Green9 (3.5%)

Blue4 (1.6%)

Hue1.78°

Saturation (HSL)95.48%

Lightness34.71%

Dominant channelRed

Hex per channelR AD · G 09 · B 04

Keep nerding

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

#AD0904

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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