Recognised as Colour

#511D1E

#511D1E
Red
Dark
Nearest: Black

#511D1E is a red with RGB values 81, 29, 30 and HSL 359°, 47%, 22%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#511D1E#511D1E

HEX#511D1E

RGBrgb(81, 29, 30)

RGB (0–1)0.3176, 0.1137, 0.1176

RGB percentages31.8%, 11.4%, 11.8%

HSLhsl(358.8, 47.3%, 21.6%)

HSV / HSBhsv(358.8, 64.2%, 31.8%)

CMYK0%, 64.2%, 63%, 68.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,315,870

CSS custom property--colour: #511D1E;

Brightness & contrast

Relative luminance0.02722WCAG 2.x, 0 is black and 1 is white

Perceived brightness50.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.6:1

Contrast with white13.6:1WCAG normal text: AAA

Contrast with black1.54:1WCAG normal text: Fail

Greyscale equivalent#282828

Inverted#AEE2E1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2A271Eno red cones; affects about 1% of men; ΔE 25.8 from the original

Deuteranopia#37321Dno green cones; the most common form, about 1% of men; ΔE 26.2 from the original

Tritanopia#59141Eno blue cones; rare, and affects men and women equally; ΔE 7.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.6:1WCAG large text: AAA

Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Black · ΔE 33.1 Saddle brown · ΔE 34.6 Sienna · ΔE 34.8 Maroon · ΔE 35.9 Brown · ΔE 36.5 Dim grey · ΔE 37.3

Nearest named CSS colourBlack (#000000)ΔE 33.1, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D5150

Analogous#511D38, #51361D

Triadic#1E511D, #1D1E51

Split complementary#1D5136, #1D3851

Tetradic#38511D, #1D5150, #361D51

Tints, shades & saturation

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

Lighter +40%#CB6F70

Lighter +30%#BE494B

Lighter +20%#9C383A

Lighter +10%#772A2C

Darker −10%#2B1010

Darker −20%#060202

Darker −30%#000000

Darker −40%#000000

More saturated +25%#5F0F11

Less saturated −25%#432B2B

Channel breakdown

R81

G29

B30

Red81 (31.8%)

Green29 (11.4%)

Blue30 (11.8%)

Hue358.85°

Saturation (HSL)47.27%

Lightness21.57%

Dominant channelRed

Hex per channelR 51 · G 1D · B 1E

Keep nerding

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

#511D1E

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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