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Recognised as Colour

#681B16

  • #681B16
  • Red
  • Dark
  • Nearest: Maroon

#681B16 is a red with RGB values 104, 27, 22 and HSL 4°, 65%, 25%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#681B16#681B16
HEX#681B16
RGBrgb(104, 27, 22)
RGB (0–1)0.4078, 0.1059, 0.0863
RGB percentages40.8%, 10.6%, 8.6%
HSLhsl(3.7, 65.1%, 24.7%)
HSV / HSBhsv(3.7, 78.8%, 40.8%)
CMYK0%, 74%, 78.8%, 59.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,822,678
CSS custom property--colour: #681B16;

Brightness & contrast

Relative luminance0.03785WCAG 2.x, 0 is black and 1 is white
Perceived brightness61 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.95:1
Contrast with white11.95:1WCAG normal text: AAA
Contrast with black1.76:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#97E4E9

Colour vision & accessibility

Protanopia#312C15no red cones; affects about 1% of men; ΔE 36.7 from the original
Deuteranopia#443D13no green cones; the most common form, about 1% of men; ΔE 37.1 from the original
Tritanopia#73021Bno blue cones; rare, and affects men and women equally; ΔE 11.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.95:1WCAG large text: AAA
Contrast with black, large text1.76:1WCAG large text: Fail

Named colours

Nearest named CSS colourMaroon (#800000)ΔE 20.73, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#166368
Analogous#68163A, #684416
Triadic#16681B, #1B1668
Split complementary#166844, #163A68
Tetradic#3A6816, #166368, #441668

Tints, shades & saturation

Lighter +40%#E0726A
Lighter +30%#D74A40
Lighter +20%#BC3128
Lighter +10%#92261F
Darker −10%#3E100D
Darker −20%#140504
Darker −30%#000000
Darker −40%#000000
More saturated +25%#780D06
Less saturated −25%#582926

Channel breakdown

R104
G27
B22
Red104 (40.8%)
Green27 (10.6%)
Blue22 (8.6%)
Hue3.66°
Saturation (HSL)65.08%
Lightness24.71%
Dominant channelRed
Hex per channelR 68 · G 1B · B 16

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Every value on this page was computed from “681b16” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.