Recognised as Colour

#A31A44

#A31A44
Red
Dark
Nearest: Brown

#A31A44 is a red with RGB values 163, 26, 68 and HSL 342°, 72%, 37%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A31A44#A31A44

HEX#A31A44

RGBrgb(163, 26, 68)

RGB (0–1)0.6392, 0.102, 0.2667

RGB percentages63.9%, 10.2%, 26.7%

HSLhsl(341.6, 72.5%, 37.1%)

HSV / HSBhsv(341.6, 84%, 63.9%)

CMYK0%, 84%, 58.3%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,689,092

CSS custom property--colour: #A31A44;

Brightness & contrast

Relative luminance0.08943WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.53:1

Contrast with white7.53:1WCAG normal text: AAA

Contrast with black2.79:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#5CE5BB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#424345no red cones; affects about 1% of men; ΔE 57.5 from the original

Deuteranopia#655E41no green cones; the most common form, about 1% of men; ΔE 58 from the original

Tritanopia#B3002Dno blue cones; rare, and affects men and women equally; ΔE 18.8 from the original

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

Contrast with white, large text7.53:1WCAG large text: AAA

Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Brown · ΔE 19.5 Indian red · ΔE 22.8 Firebrick · ΔE 25.9 Crimson · ΔE 28.8 Maroon · ΔE 29 Pale violetred · ΔE 29

Nearest named CSS colourBrown (#A52A2A)ΔE 19.49, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1AA379

Analogous#A31A88, #A3351A

Triadic#44A31A, #1A44A3

Split complementary#1AA335, #1A88A3

Tetradic#88A31A, #1AA379, #351AA3

Tints, shades & saturation

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

Lighter +40%#EF9AB4

Lighter +30%#E86E93

Lighter +20%#E14273

Lighter +10%#CF2156

Darker −10%#771332

Darker −20%#4B0C1F

Darker −30%#1F050D

Darker −40%#000000

More saturated +25%#BB023B

Less saturated −25%#8B324D

Channel breakdown

R163

G26

B68

Red163 (63.9%)

Green26 (10.2%)

Blue68 (26.7%)

Hue341.61°

Saturation (HSL)72.49%

Lightness37.06%

Dominant channelRed

Hex per channelR A3 · G 1A · B 44

Keep nerding

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

#A31A44

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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