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Recognised as Colour

#31111E

  • #31111E
  • Red
  • Dark
  • Nearest: Black

#31111E is a red with RGB values 49, 17, 30 and HSL 336°, 48%, 13%. It is a dark colour, so white text on it reaches 17.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#31111E#31111E
HEX#31111E
RGBrgb(49, 17, 30)
RGB (0–1)0.1922, 0.0667, 0.1176
RGB percentages19.2%, 6.7%, 11.8%
HSLhsl(335.6, 48.5%, 12.9%)
HSV / HSBhsv(335.6, 65.3%, 19.2%)
CMYK0%, 65.3%, 38.8%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,215,646
CSS custom property--colour: #31111E;

Brightness & contrast

Relative luminance0.01148WCAG 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 17.08:1
Contrast with white17.08:1WCAG normal text: AAA
Contrast with black1.23:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#CEEEE1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#16181Eno red cones; affects about 1% of men; ΔE 17.6 from the original
Deuteranopia#1E1E1Dno green cones; the most common form, about 1% of men; ΔE 18.4 from the original
Tritanopia#350F16no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.08:1WCAG large text: AAA
Contrast with black, large text1.23:1WCAG large text: Fail

Named colours

Black · ΔE 20.7Dark slate grey · ΔE 36.5Dim grey · ΔE 38.7Dark slateblue · ΔE 46.4Gray · ΔE 47Slate grey · ΔE 48.1
Nearest named CSS colourBlack (#000000)ΔE 20.72, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#113124
Analogous#31112E, #311411
Triadic#1E3111, #111E31
Split complementary#113114, #112E31
Tetradic#2E3111, #113124, #141131

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C14D7C
Lighter +30%#A33864
Lighter +20%#7D2B4C
Lighter +10%#571E35
Darker −10%#0B0407
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#39091C
Less saturated −25%#291920

Channel breakdown

R49
G17
B30
Red49 (19.2%)
Green17 (6.7%)
Blue30 (11.8%)
Hue335.63°
Saturation (HSL)48.48%
Lightness12.94%
Dominant channelRed
Hex per channelR 31 · G 11 · B 1E

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Every value on this page was computed from “31111e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.