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Recognised as Colour

#23181F

  • #23181F
  • Magenta
  • Dark
  • Nearest: Black

#23181F is a magenta with RGB values 35, 24, 31 and HSL 322°, 19%, 12%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#23181F#23181F
HEX#23181F
RGBrgb(35, 24, 31)
RGB (0–1)0.1373, 0.0941, 0.1216
RGB percentages13.7%, 9.4%, 12.2%
HSLhsl(321.8, 18.6%, 11.6%)
HSV / HSBhsv(321.8, 31.4%, 13.7%)
CMYK0%, 31.4%, 11.4%, 86.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,299,935
CSS custom property--colour: #23181F;

Brightness & contrast

Relative luminance0.0111WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.19:1
Contrast with white17.19:1WCAG normal text: AAA
Contrast with black1.22:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#DCE7E0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#181A1Fno red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#1B1C1Fno green cones; the most common form, about 1% of men; ΔE 6.7 from the original
Tritanopia#24181Ano blue cones; rare, and affects men and women equally; ΔE 3.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.19:1WCAG large text: AAA
Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Black · ΔE 12.4Dark slate grey · ΔE 28.5Dim grey · ΔE 35.4Gray · ΔE 44.4Slate grey · ΔE 44.6Light slate grey · ΔE 47.7
Nearest named CSS colourBlack (#000000)ΔE 12.43, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#18231C
Analogous#211823, #23181A
Triadic#1F2318, #181F23
Split complementary#1A2318, #182321
Tetradic#232118, #18231C, #181A23

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9B6C8A
Lighter +30%#7E566F
Lighter +20%#604155
Lighter +10%#412D3A
Darker −10%#050304
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2A1121
Less saturated −25%#1D1D1D

Channel breakdown

R35
G24
B31
Red35 (13.7%)
Green24 (9.4%)
Blue31 (12.2%)
Hue321.82°
Saturation (HSL)18.64%
Lightness11.57%
Dominant channelRed
Hex per channelR 23 · G 18 · B 1F

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Every value on this page was computed from “23181f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.