Nerdulator> put something in

Recognised as Colour

#803F3F

  • #803F3F
  • Red
  • Dark
  • Nearest: Sienna

#803F3F is a red with RGB values 128, 63, 63 and HSL 0°, 34%, 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

#803F3F#803F3F
HEX#803F3F
RGBrgb(128, 63, 63)
RGB (0–1)0.502, 0.2471, 0.2471
RGB percentages50.2%, 24.7%, 24.7%
HSLhsl(0, 34%, 37.5%)
HSV / HSBhsv(0, 50.8%, 50.2%)
CMYK0%, 50.8%, 50.8%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,404,799
CSS custom property--colour: #803F3F;

Brightness & contrast

Relative luminance0.08503WCAG 2.x, 0 is black and 1 is white
Perceived brightness87.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.78:1
Contrast with white7.78:1WCAG normal text: AAA
Contrast with black2.7:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#7FC0C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4D4A3Fno red cones; affects about 1% of men; ΔE 29.7 from the original
Deuteranopia#5E573Eno green cones; the most common form, about 1% of men; ΔE 29.7 from the original
Tritanopia#8B3640no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.78:1WCAG large text: AAA
Contrast with black, large text2.7:1WCAG large text: Fail

Named colours

Sienna · ΔE 24.3Indian red · ΔE 26.6Brown · ΔE 28Saddle brown · ΔE 28.1Rosy brown · ΔE 31.3Dim grey · ΔE 32.2
Nearest named CSS colourSienna (#A0522D)ΔE 24.33, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F8080
Analogous#803F60, #80603F
Triadic#3F803F, #3F3F80
Split complementary#3F8060, #3F6080
Tetradic#60803F, #3F8080, #603F80

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9B2B2
Lighter +30%#C89090
Lighter +20%#B76E6E
Lighter +10%#A25050
Darker −10%#5E2E2E
Darker −20%#3C1D1D
Darker −30%#190D0D
Darker −40%#000000
More saturated +25%#982727
Less saturated −25%#685757

Channel breakdown

R128
G63
B63
Red128 (50.2%)
Green63 (24.7%)
Blue63 (24.7%)
Hue0°
Saturation (HSL)34.03%
Lightness37.45%
Dominant channelRed
Hex per channelR 80 · G 3F · B 3F

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 “803f3f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.