Nerdulator> put something in

Recognised as Colour

#73131F

  • #73131F
  • Red
  • Dark
  • Nearest: Brown

#73131F is a red with RGB values 115, 19, 31 and HSL 353°, 72%, 26%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#73131F#73131F
HEX#73131F
RGBrgb(115, 19, 31)
RGB (0–1)0.451, 0.0745, 0.1216
RGB percentages45.1%, 7.5%, 12.2%
HSLhsl(352.5, 71.6%, 26.3%)
HSV / HSBhsv(352.5, 83.5%, 45.1%)
CMYK0%, 83.5%, 73%, 54.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,541,535
CSS custom property--colour: #73131F;

Brightness & contrast

Relative luminance0.0421WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.4:1
Contrast with white11.4:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#8CECE0

Colour vision & accessibility

Protanopia#312D1Fno red cones; affects about 1% of men; ΔE 43.4 from the original
Deuteranopia#48411Cno green cones; the most common form, about 1% of men; ΔE 43.9 from the original
Tritanopia#7F0019no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.4:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Nearest named CSS colourBrown (#A52A2A)ΔE 19.27, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#137367
Analogous#73134F, #733713
Triadic#1F7313, #131F73
Split complementary#137337, #134F73
Tetradic#4F7313, #137367, #371373

Tints, shades & saturation

Lighter +40%#E76B7B
Lighter +30%#DF4054
Lighter +20%#CB2137
Lighter +10%#9F1A2B
Darker −10%#470C13
Darker −20%#1B0507
Darker −30%#000000
Darker −40%#000000
More saturated +25%#840212
Less saturated −25%#62242C

Channel breakdown

R115
G19
B31
Red115 (45.1%)
Green19 (7.5%)
Blue31 (12.2%)
Hue352.5°
Saturation (HSL)71.64%
Lightness26.27%
Dominant channelRed
Hex per channelR 73 · G 13 · B 1F

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “73131f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.