Recognised as Colour

#AD123D

#AD123D
Red
Dark
Nearest: Brown

#AD123D is a red with RGB values 173, 18, 61 and HSL 343°, 81%, 37%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#AD123D#AD123D

HEX#AD123D

RGBrgb(173, 18, 61)

RGB (0–1)0.6784, 0.0706, 0.2392

RGB percentages67.8%, 7.1%, 23.9%

HSLhsl(343.4, 81.2%, 37.5%)

HSV / HSBhsv(343.4, 89.6%, 67.8%)

CMYK0%, 89.6%, 64.7%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,342,397

CSS custom property--colour: #AD123D;

Brightness & contrast

Relative luminance0.09654WCAG 2.x, 0 is black and 1 is white

Perceived brightness97.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.17:1

Contrast with white7.17:1WCAG normal text: AAA

Contrast with black2.93:1WCAG normal text: Fail

Greyscale equivalent#363636

Inverted#52EDC2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#46443Dno red cones; affects about 1% of men; ΔE 62.1 from the original

Deuteranopia#6B6239no green cones; the most common form, about 1% of men; ΔE 62.5 from the original

Tritanopia#BE0027no blue cones; rare, and affects men and women equally; ΔE 18.6 from the original

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

Contrast with white, large text7.17:1WCAG large text: AAA

Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Brown · ΔE 15.3 Firebrick · ΔE 19.4 Crimson · ΔE 21.3 Indian red · ΔE 22 Maroon · ΔE 25.3 Dark red · ΔE 25.8

Nearest named CSS colourBrown (#A52A2A)ΔE 15.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12AD82

Analogous#AD128B, #AD3512

Triadic#3DAD12, #123DAD

Split complementary#12AD35, #128AAD

Tetradic#8AAD12, #12AD82, #3512AD

Tints, shades & saturation

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

Lighter +40%#F497B1

Lighter +30%#EF698E

Lighter +20%#EB3A6B

Lighter +10%#DB174D

Darker −10%#7F0D2D

Darker −20%#51081C

Darker −30%#22040C

Darker −40%#000000

More saturated +25%#BF0035

Less saturated −25%#952A48

Channel breakdown

R173

G18

B61

Red173 (67.8%)

Green18 (7.1%)

Blue61 (23.9%)

Hue343.35°

Saturation (HSL)81.15%

Lightness37.45%

Dominant channelRed

Hex per channelR AD · G 12 · B 3D

Keep nerding

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

#AD123D

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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