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Recognised as Colour

#31150C

  • #31150C
  • Red
  • Dark
  • Nearest: Black

#31150C is a red with RGB values 49, 21, 12 and HSL 15°, 61%, 12%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#31150C#31150C
HEX#31150C
RGBrgb(49, 21, 12)
RGB (0–1)0.1922, 0.0824, 0.0471
RGB percentages19.2%, 8.2%, 4.7%
HSLhsl(14.6, 60.7%, 12%)
HSV / HSBhsv(14.6, 75.5%, 19.2%)
CMYK0%, 57.1%, 75.5%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,216,652
CSS custom property--colour: #31150C;

Brightness & contrast

Relative luminance0.01216WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.89:1
Contrast with white16.89:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#CEEAF3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1C190Bno red cones; affects about 1% of men; ΔE 14.8 from the original
Deuteranopia#231F0Cno green cones; the most common form, about 1% of men; ΔE 14.7 from the original
Tritanopia#361013no blue cones; rare, and affects men and women equally; ΔE 7.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.89:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 20.4Dark slate grey · ΔE 35.6Dim grey · ΔE 37.9Saddle brown · ΔE 42.1Sienna · ΔE 44.2Gray · ΔE 46.3
Nearest named CSS colourBlack (#000000)ΔE 20.38, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0C2831
Analogous#310C16, #31280C
Triadic#0C3115, #150C31
Split complementary#0C3127, #0C1631
Tetradic#16310C, #0C2831, #270C31

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CF5E3A
Lighter +30%#AC4A2A
Lighter +20%#833820
Lighter +10%#5A2716
Darker −10%#080302
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#391104
Less saturated −25%#291914

Channel breakdown

R49
G21
B12
Red49 (19.2%)
Green21 (8.2%)
Blue12 (4.7%)
Hue14.59°
Saturation (HSL)60.66%
Lightness11.96%
Dominant channelRed
Hex per channelR 31 · G 15 · B 0C

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Every value on this page was computed from “31150c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.