Recognised as Colour

#A32B17

#A32B17
Red
Dark
Nearest: Firebrick

#A32B17 is a red with RGB values 163, 43, 23 and HSL 9°, 75%, 36%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#A32B17#A32B17

HEX#A32B17

RGBrgb(163, 43, 23)

RGB (0–1)0.6392, 0.1686, 0.0902

RGB percentages63.9%, 16.9%, 9%

HSLhsl(8.6, 75.3%, 36.5%)

HSV / HSBhsv(8.6, 85.9%, 63.9%)

CMYK0%, 73.6%, 85.9%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,693,399

CSS custom property--colour: #A32B17;

Brightness & contrast

Relative luminance0.09576WCAG 2.x, 0 is black and 1 is white

Perceived brightness95.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.2:1

Contrast with white7.2:1WCAG normal text: AAA

Contrast with black2.92:1WCAG normal text: Fail

Greyscale equivalent#434343

Inverted#5CD4E8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#504613no red cones; affects about 1% of men; ΔE 51.9 from the original

Deuteranopia#6D6110no green cones; the most common form, about 1% of men; ΔE 52.5 from the original

Tritanopia#B40028no blue cones; rare, and affects men and women equally; ΔE 16.4 from the original

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

Contrast with white, large text7.2:1WCAG large text: AAA

Contrast with black, large text2.92:1WCAG large text: Fail

Named colours

Firebrick · ΔE 8.6 Dark red · ΔE 9.5 Brown · ΔE 10.1 Maroon · ΔE 11.8 Sienna · ΔE 20.4 Saddle brown · ΔE 21.6

Nearest named CSS colourFirebrick (#B22222)ΔE 8.63, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#178FA3

Analogous#A31749, #A37117

Triadic#17A32B, #2B17A3

Split complementary#17A371, #1749A3

Tetradic#49A317, #178FA3, #7117A3

Tints, shades & saturation

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

Lighter +40%#F0A396

Lighter +30%#EA7C69

Lighter +20%#E4543C

Lighter +10%#D0371D

Darker −10%#761F11

Darker −20%#4A130A

Darker −30%#1D0804

Darker −40%#000000

More saturated +25%#BA1B00

Less saturated −25%#8C3C2E

Channel breakdown

R163

G43

B23

Red163 (63.9%)

Green43 (16.9%)

Blue23 (9%)

Hue8.57°

Saturation (HSL)75.27%

Lightness36.47%

Dominant channelRed

Hex per channelR A3 · G 2B · B 17

Keep nerding

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

#A32B17

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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