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Recognised as Colour

#511C2C

  • #511C2C
  • Red
  • Dark
  • Nearest: Black

#511C2C is a red with RGB values 81, 28, 44 and HSL 342°, 49%, 21%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#511C2C#511C2C
HEX#511C2C
RGBrgb(81, 28, 44)
RGB (0–1)0.3176, 0.1098, 0.1725
RGB percentages31.8%, 11%, 17.3%
HSLhsl(341.9, 48.6%, 21.4%)
HSV / HSBhsv(341.9, 65.4%, 31.8%)
CMYK0%, 65.4%, 45.7%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,315,628
CSS custom property--colour: #511C2C;

Brightness & contrast

Relative luminance0.02762WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.53:1
Contrast with white13.53:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#AEE3D3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#26282Cno red cones; affects about 1% of men; ΔE 27 from the original
Deuteranopia#34322Bno green cones; the most common form, about 1% of men; ΔE 27.3 from the original
Tritanopia#581622no blue cones; rare, and affects men and women equally; ΔE 8.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.53:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail

Named colours

Black · ΔE 32.7Dim grey · ΔE 36.7Dark slate grey · ΔE 40.6Brown · ΔE 41Sienna · ΔE 41.7Maroon · ΔE 42.3
Nearest named CSS colourBlack (#000000)ΔE 32.73, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1C5141
Analogous#511C47, #51271C
Triadic#2C511C, #1C2C51
Split complementary#1C5127, #1C4751
Tetradic#46511C, #1C5141, #261C51

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CC6D8A
Lighter +30%#BF476B
Lighter +20%#9D3655
Lighter +10%#772941
Darker −10%#2B0F17
Darker −20%#050203
Darker −30%#000000
Darker −40%#000000
More saturated +25%#5F0E27
Less saturated −25%#432A31

Channel breakdown

R81
G28
B44
Red81 (31.8%)
Green28 (11%)
Blue44 (17.3%)
Hue341.89°
Saturation (HSL)48.62%
Lightness21.37%
Dominant channelRed
Hex per channelR 51 · G 1C · B 2C

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Every value on this page was computed from “511c2c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.