Colour

#AD3939

#AD3939
Red
Dark
Nearest: Brown

#AD3939 is a red with RGB values 173, 57, 57 and HSL 0°, 50%, 45%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#AD3939#AD3939

HEX#AD3939

RGBrgb(173, 57, 57)

RGB (0–1)0.6784, 0.2235, 0.2235

RGB percentages67.8%, 22.4%, 22.4%

HSLhsl(0, 50.4%, 45.1%)

HSV / HSBhsv(0, 67.1%, 67.8%)

CMYK0%, 67.1%, 67.1%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,352,377

CSS custom property--colour: #AD3939;

Brightness & contrast

Relative luminance0.12106WCAG 2.x, 0 is black and 1 is white

Perceived brightness106 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.14:1

Contrast with white6.14:1WCAG normal text: AA

Contrast with black3.42:1WCAG normal text: Fail

Greyscale equivalent#525252

Inverted#52C6C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#585238no red cones; affects about 1% of men; ΔE 50.8 from the original

Deuteranopia#756B36no green cones; the most common form, about 1% of men; ΔE 51.3 from the original

Tritanopia#BE1C3Ano blue cones; rare, and affects men and women equally; ΔE 14.5 from the original

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

Contrast with white, large text6.14:1WCAG large text: AAA

Contrast with black, large text3.42:1WCAG large text: AA

Named colours

Brown · ΔE 6.1 Indian red · ΔE 13 Firebrick · ΔE 14.4 Maroon · ΔE 19.7 Sienna · ΔE 20.3 Dark red · ΔE 20.3

Nearest named CSS colourBrown (#A52A2A)ΔE 6.14, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#39ADAD

Analogous#AD3973, #AD7339

Triadic#39AD39, #3939AD

Split complementary#39AD73, #3973AD

Tetradic#73AD39, #39ADAD, #7339AD

Tints, shades & saturation

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

Lighter +40%#ECC6C6

Lighter +30%#E09F9F

Lighter +20%#D37979

Lighter +10%#C65353

Darker −10%#872C2C

Darker −20%#602020

Darker −30%#3A1313

Darker −40%#140606

More saturated +25%#CA1C1C

Less saturated −25%#905656

Channel breakdown

R173

G57

B57

Red173 (67.8%)

Green57 (22.4%)

Blue57 (22.4%)

Hue0°

Saturation (HSL)50.43%

Lightness45.1%

Dominant channelRed

Hex per channelR AD · G 39 · B 39

Keep nerding

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

#AD3939

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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