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Recognised as Colour

#370B33

  • #370B33
  • Magenta
  • Dark
  • Nearest: Black

#370B33 is a magenta with RGB values 55, 11, 51 and HSL 305°, 67%, 13%. It is a dark colour, so white text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#370B33#370B33
HEX#370B33
RGBrgb(55, 11, 51)
RGB (0–1)0.2157, 0.0431, 0.2
RGB percentages21.6%, 4.3%, 20%
HSLhsl(305.5, 66.7%, 12.9%)
HSV / HSBhsv(305.5, 80%, 21.6%)
CMYK0%, 80%, 7.3%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,607,347
CSS custom property--colour: #370B33;

Brightness & contrast

Relative luminance0.01291WCAG 2.x, 0 is black and 1 is white
Perceived brightness35.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.69:1
Contrast with white16.69:1WCAG normal text: AAA
Contrast with black1.26:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#C8F4CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#081A34no red cones; affects about 1% of men; ΔE 24 from the original
Deuteranopia#182032no green cones; the most common form, about 1% of men; ΔE 24.9 from the original
Tritanopia#3A101Dno blue cones; rare, and affects men and women equally; ΔE 17.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.69:1WCAG large text: AAA
Contrast with black, large text1.26:1WCAG large text: Fail

Named colours

Black · ΔE 33.1Dark slateblue · ΔE 33.3Midnight blue · ΔE 35Rebecca purple · ΔE 41.7Purple · ΔE 42.5Dark slate grey · ΔE 45.2
Nearest named CSS colourBlack (#000000)ΔE 33.09, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0B370F
Analogous#250B37, #370B1D
Triadic#33370B, #0B3337
Split complementary#1D370B, #0B3725
Tetradic#37250B, #0B370F, #0B1D37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D737C8
Lighter +30%#B725A9
Lighter +20%#8C1C82
Lighter +10%#62135A
Darker −10%#0D030C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3F033A
Less saturated −25%#2F132C

Channel breakdown

R55
G11
B51
Red55 (21.6%)
Green11 (4.3%)
Blue51 (20%)
Hue305.45°
Saturation (HSL)66.67%
Lightness12.94%
Dominant channelRed
Hex per channelR 37 · G 0B · B 33

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Every value on this page was computed from “370b33” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.