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Recognised as Colour

#43100D

  • #43100D
  • Red
  • Dark
  • Nearest: Black

#43100D is a red with RGB values 67, 16, 13 and HSL 3°, 68%, 16%. It is a dark colour, so white text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#43100D#43100D
HEX#43100D
RGBrgb(67, 16, 13)
RGB (0–1)0.2627, 0.0627, 0.051
RGB percentages26.3%, 6.3%, 5.1%
HSLhsl(3.3, 67.5%, 15.7%)
HSV / HSBhsv(3.3, 80.6%, 26.3%)
CMYK0%, 76.1%, 80.6%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,395,021
CSS custom property--colour: #43100D;

Brightness & contrast

Relative luminance0.01593WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.93:1
Contrast with white15.93:1WCAG normal text: AAA
Contrast with black1.32:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#BCEFF2

Colour vision & accessibility

Protanopia#1E1B0Cno red cones; affects about 1% of men; ΔE 26.5 from the original
Deuteranopia#2B260Bno green cones; the most common form, about 1% of men; ΔE 26.5 from the original
Tritanopia#4A0310no blue cones; rare, and affects men and women equally; ΔE 8.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.93:1WCAG large text: AAA
Contrast with black, large text1.32:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 31.39, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#0D4043
Analogous#430D25, #432B0D
Triadic#0D4310, #100D43
Split complementary#0D432B, #0D2543
Tetradic#25430D, #0D4043, #2B0D43

Tints, shades & saturation

Lighter +40%#DA4A42
Lighter +30%#C32F26
Lighter +20%#98241E
Lighter +10%#6E1A15
Darker −10%#180605
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#4D0703
Less saturated −25%#391917

Channel breakdown

R67
G16
B13
Red67 (26.3%)
Green16 (6.3%)
Blue13 (5.1%)
Hue3.33°
Saturation (HSL)67.5%
Lightness15.69%
Dominant channelRed
Hex per channelR 43 · G 10 · B 0D

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Every value on this page was computed from “43100d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.