Colour

#AD203B

#AD203B
Red
Dark
Nearest: Brown

#AD203B is a red with RGB values 173, 32, 59 and HSL 349°, 69%, 40%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#AD203B#AD203B

HEX#AD203B

RGBrgb(173, 32, 59)

RGB (0–1)0.6784, 0.1255, 0.2314

RGB percentages67.8%, 12.5%, 23.1%

HSLhsl(348.5, 68.8%, 40.2%)

HSV / HSBhsv(348.5, 81.5%, 67.8%)

CMYK0%, 81.5%, 65.9%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,345,979

CSS custom property--colour: #AD203B;

Brightness & contrast

Relative luminance0.10233WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.89:1

Contrast with white6.89:1WCAG normal text: AA

Contrast with black3.05:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#52DFC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4B473Bno red cones; affects about 1% of men; ΔE 58.9 from the original

Deuteranopia#6E6537no green cones; the most common form, about 1% of men; ΔE 59.9 from the original

Tritanopia#BE002Cno blue cones; rare, and affects men and women equally; ΔE 15 from the original

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

Contrast with white, large text6.89:1WCAG large text: AAA

Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Brown · ΔE 11.3 Firebrick · ΔE 16.4 Indian red · ΔE 18.9 Crimson · ΔE 21.2 Maroon · ΔE 22.5 Dark red · ΔE 23

Nearest named CSS colourBrown (#A52A2A)ΔE 11.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#20AD92

Analogous#AD2082, #AD4B20

Triadic#3BAD20, #203BAD

Split complementary#20AD4C, #2082AD

Tetradic#82AD20, #20AD92, #4C20AD

Tints, shades & saturation

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

Lighter +40%#EFAAB7

Lighter +30%#E77F93

Lighter +20%#DF546E

Lighter +10%#D7294A

Darker −10%#82182C

Darker −20%#57101E

Darker −30%#2C080F

Darker −40%#010000

More saturated +25%#C7062B

Less saturated −25%#933A4B

Channel breakdown

R173

G32

B59

Red173 (67.8%)

Green32 (12.5%)

Blue59 (23.1%)

Hue348.51°

Saturation (HSL)68.78%

Lightness40.2%

Dominant channelRed

Hex per channelR AD · G 20 · B 3B

Keep nerding

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

#AD203B

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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