Recognised as Colour

#A3142B

#A3142B
Red
Dark
Nearest: Brown

#A3142B is a red with RGB values 163, 20, 43 and HSL 350°, 78%, 36%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#A3142B#A3142B

HEX#A3142B

RGBrgb(163, 20, 43)

RGB (0–1)0.6392, 0.0784, 0.1686

RGB percentages63.9%, 7.8%, 16.9%

HSLhsl(350.3, 78.1%, 35.9%)

HSV / HSBhsv(350.3, 87.7%, 63.9%)

CMYK0%, 87.7%, 73.6%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,687,531

CSS custom property--colour: #A3142B;

Brightness & contrast

Relative luminance0.08461WCAG 2.x, 0 is black and 1 is white

Perceived brightness91.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.8:1

Contrast with white7.8:1WCAG normal text: AAA

Contrast with black2.69:1WCAG normal text: Fail

Greyscale equivalent#343434

Inverted#5CEBD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443F2Bno red cones; affects about 1% of men; ΔE 59.1 from the original

Deuteranopia#675D26no green cones; the most common form, about 1% of men; ΔE 59.3 from the original

Tritanopia#B4001Fno blue cones; rare, and affects men and women equally; ΔE 13.2 from the original

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

Contrast with white, large text7.8:1WCAG large text: AAA

Contrast with black, large text2.69:1WCAG large text: Fail

Named colours

Brown · ΔE 7.3 Firebrick · ΔE 11.6 Maroon · ΔE 16.4 Dark red · ΔE 16.6 Crimson · ΔE 20.9 Indian red · ΔE 21.8

Nearest named CSS colourBrown (#A52A2A)ΔE 7.25, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#14A38C

Analogous#A31472, #A34414

Triadic#2BA314, #142BA3

Split complementary#14A344, #1472A3

Tetradic#72A314, #14A38C, #4414A3

Tints, shades & saturation

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

Lighter +40%#F291A1

Lighter +30%#EC647A

Lighter +20%#E63753

Lighter +10%#D01A37

Darker −10%#760E1F

Darker −20%#480913

Darker −30%#1B0307

Darker −40%#000000

More saturated +25%#B7001D

Less saturated −25%#8C2B3B

Channel breakdown

R163

G20

B43

Red163 (63.9%)

Green20 (7.8%)

Blue43 (16.9%)

Hue350.35°

Saturation (HSL)78.14%

Lightness35.88%

Dominant channelRed

Hex per channelR A3 · G 14 · B 2B

Keep nerding

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

#A3142B

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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