Recognised as Colour

#A63336

#A63336
Red
Dark
Nearest: Brown

#A63336 is a red with RGB values 166, 51, 54 and HSL 358°, 53%, 43%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#A63336#A63336

HEX#A63336

RGBrgb(166, 51, 54)

RGB (0–1)0.651, 0.2, 0.2118

RGB percentages65.1%, 20%, 21.2%

HSLhsl(358.4, 53%, 42.5%)

HSV / HSBhsv(358.4, 69.3%, 65.1%)

CMYK0%, 69.3%, 67.5%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,892,086

CSS custom property--colour: #A63336;

Brightness & contrast

Relative luminance0.10741WCAG 2.x, 0 is black and 1 is white

Perceived brightness100.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.67:1

Contrast with white6.67:1WCAG normal text: AA

Contrast with black3.15:1WCAG normal text: Fail

Greyscale equivalent#4C4C4C

Inverted#59CCC9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524D35no red cones; affects about 1% of men; ΔE 50.8 from the original

Deuteranopia#6F6533no green cones; the most common form, about 1% of men; ΔE 50.8 from the original

Tritanopia#B61335no blue cones; rare, and affects men and women equally; ΔE 14 from the original

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

Contrast with white, large text6.67:1WCAG large text: AAA

Contrast with black, large text3.15:1WCAG large text: AA

Named colours

Brown · ΔE 6.1 Indian red · ΔE 14.8 Firebrick · ΔE 15.2 Maroon · ΔE 18.7 Dark red · ΔE 19.9 Sienna · ΔE 21.2

Nearest named CSS colourBrown (#A52A2A)ΔE 6.1, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#33A6A3

Analogous#A63370, #A66933

Triadic#36A633, #3336A6

Split complementary#33A669, #3370A6

Tetradic#70A633, #33A6A3, #6933A6

Tints, shades & saturation

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

Lighter +40%#EABBBC

Lighter +30%#DE9496

Lighter +20%#D26D70

Lighter +10%#C64649

Darker −10%#7F2729

Darker −20%#581B1D

Darker −30%#310F10

Darker −40%#0A0303

More saturated +25%#C1181C

Less saturated −25%#8B4E50

Channel breakdown

R166

G51

B54

Red166 (65.1%)

Green51 (20%)

Blue54 (21.2%)

Hue358.43°

Saturation (HSL)53%

Lightness42.55%

Dominant channelRed

Hex per channelR A6 · G 33 · B 36

Keep nerding

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

#A63336

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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