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Recognised as Colour

#37011D

  • #37011D
  • Magenta
  • Dark
  • Nearest: Black

#37011D is a magenta with RGB values 55, 1, 29 and HSL 329°, 96%, 11%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#37011D#37011D
HEX#37011D
RGBrgb(55, 1, 29)
RGB (0–1)0.2157, 0.0039, 0.1137
RGB percentages21.6%, 0.4%, 11.4%
HSLhsl(328.9, 96.4%, 11%)
HSV / HSBhsv(328.9, 98.2%, 21.6%)
CMYK0%, 98.2%, 47.3%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,604,765
CSS custom property--colour: #37011D;

Brightness & contrast

Relative luminance0.00923WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.73:1
Contrast with white17.73:1WCAG normal text: AAA
Contrast with black1.18:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#C8FEE2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C121Eno red cones; affects about 1% of men; ΔE 28.2 from the original
Deuteranopia#1C1C1Cno green cones; the most common form, about 1% of men; ΔE 28.8 from the original
Tritanopia#3C000Dno blue cones; rare, and affects men and women equally; ΔE 11.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.73:1WCAG large text: AAA
Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 30Dark slateblue · ΔE 45.1Dim grey · ΔE 46.1Dark slate grey · ΔE 46.4Midnight blue · ΔE 47.2Maroon · ΔE 48.7
Nearest named CSS colourBlack (#000000)ΔE 29.95, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#01371B
Analogous#360137, #370102
Triadic#1D3701, #011D37
Split complementary#023701, #013736
Tetradic#373601, #01371B, #010237

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FB0986
Lighter +30%#CD046C
Lighter +20%#9B0352
Lighter +10%#690237
Darker −10%#050003
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#38001D
Less saturated −25%#30081D

Channel breakdown

R55
G1
B29
Red55 (21.6%)
Green1 (0.4%)
Blue29 (11.4%)
Hue328.89°
Saturation (HSL)96.43%
Lightness10.98%
Dominant channelRed
Hex per channelR 37 · G 01 · B 1D

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Every value on this page was computed from “37011d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.