Nerdulator> put something in

Recognised as Colour

#873A35

  • #873A35
  • Red
  • Dark
  • Nearest: Sienna

#873A35 is a red with RGB values 135, 58, 53 and HSL 4°, 44%, 37%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Sienna.

Colour values

#873A35#873A35
HEX#873A35
RGBrgb(135, 58, 53)
RGB (0–1)0.5294, 0.2275, 0.2078
RGB percentages52.9%, 22.7%, 20.8%
HSLhsl(3.7, 43.6%, 36.9%)
HSV / HSBhsv(3.7, 60.7%, 52.9%)
CMYK0%, 57%, 60.7%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,862,261
CSS custom property--colour: #873A35;

Brightness & contrast

Relative luminance0.08434WCAG 2.x, 0 is black and 1 is white
Perceived brightness88 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.82:1
Contrast with white7.82:1WCAG normal text: AAA
Contrast with black2.69:1WCAG normal text: Fail
Greyscale equivalent#4A4A4A
Inverted#78C5CA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D4834no red cones; affects about 1% of men; ΔE 35 from the original
Deuteranopia#605833no green cones; the most common form, about 1% of men; ΔE 35.4 from the original
Tritanopia#942C39no blue cones; rare, and affects men and women equally; ΔE 11.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.82:1WCAG large text: AAA
Contrast with black, large text2.69:1WCAG large text: Fail

Named colours

Sienna · ΔE 18.9Brown · ΔE 20.6Indian red · ΔE 22.4Saddle brown · ΔE 22.7Maroon · ΔE 26Dark red · ΔE 29.5
Nearest named CSS colourSienna (#A0522D)ΔE 18.89, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#358287
Analogous#873559, #876335
Triadic#35873A, #3A3587
Split complementary#358763, #355987
Tetradic#598735, #358287, #633587

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEADAA
Lighter +30%#CF8A86
Lighter +20%#C16761
Lighter +10%#AC4A43
Darker −10%#622A27
Darker −20%#3E1B18
Darker −30%#190B0A
Darker −40%#000000
More saturated +25%#9F251E
Less saturated −25%#704F4D

Channel breakdown

R135
G58
B53
Red135 (52.9%)
Green58 (22.7%)
Blue53 (20.8%)
Hue3.66°
Saturation (HSL)43.62%
Lightness36.86%
Dominant channelRed
Hex per channelR 87 · G 3A · B 35

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 “873a35” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.