Colour

#551D39

#551D39
Red
Dark
Nearest: Black

#551D39 is a red with RGB values 85, 29, 57 and HSL 330°, 49%, 22%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#551D39#551D39

HEX#551D39

RGBrgb(85, 29, 57)

RGB (0–1)0.3333, 0.1137, 0.2235

RGB percentages33.3%, 11.4%, 22.4%

HSLhsl(330, 49.1%, 22.4%)

HSV / HSBhsv(330, 65.9%, 33.3%)

CMYK0%, 65.9%, 32.9%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,578,041

CSS custom property--colour: #551D39;

Brightness & contrast

Relative luminance0.03105WCAG 2.x, 0 is black and 1 is white

Perceived brightness55 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.95:1

Contrast with white12.95:1WCAG normal text: AAA

Contrast with black1.62:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#AAE2C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#252B3Ano red cones; affects about 1% of men; ΔE 28.2 from the original

Deuteranopia#343538no green cones; the most common form, about 1% of men; ΔE 29.1 from the original

Tritanopia#5B1A28no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.95:1WCAG large text: AAA

Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Black · ΔE 36 Dim grey · ΔE 38.1 Dark slateblue · ΔE 38.9 Dark slate grey · ΔE 42.4 Pale violetred · ΔE 43.6 Brown · ΔE 44.2

Nearest named CSS colourBlack (#000000)ΔE 36, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D5539

Analogous#551D55, #551D1D

Triadic#39551D, #1D3955

Split complementary#1D551D, #1D5555

Tetradic#55551D, #1D5539, #1D1D55

Tints, shades & saturation

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

Lighter +40%#CE709F

Lighter +30%#C14A86

Lighter +20%#A1376C

Lighter +10%#7B2A52

Darker −10%#2F1020

Darker −20%#090306

Darker −30%#000000

Darker −40%#000000

More saturated +25%#630F39

Less saturated −25%#472B39

Channel breakdown

R85

G29

B57

Red85 (33.3%)

Green29 (11.4%)

Blue57 (22.4%)

Hue330°

Saturation (HSL)49.12%

Lightness22.35%

Dominant channelRed

Hex per channelR 55 · G 1D · B 39

Keep nerding

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

#551D39

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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