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Recognised as Colour

#370B3F

  • #370B3F
  • Magenta
  • Dark
  • Nearest: Dark slateblue

#370B3F is a magenta with RGB values 55, 11, 63 and HSL 291°, 70%, 15%. It is a dark colour, so white text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#370B3F#370B3F
HEX#370B3F
RGBrgb(55, 11, 63)
RGB (0–1)0.2157, 0.0431, 0.2471
RGB percentages21.6%, 4.3%, 24.7%
HSLhsl(290.8, 70.3%, 14.5%)
HSV / HSBhsv(290.8, 82.5%, 24.7%)
CMYK12.7%, 82.5%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,607,359
CSS custom property--colour: #370B3F;

Brightness & contrast

Relative luminance0.0141WCAG 2.x, 0 is black and 1 is white
Perceived brightness37.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.38:1
Contrast with white16.38:1WCAG normal text: AAA
Contrast with black1.28:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#C8F4C0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001C40no red cones; affects about 1% of men; ΔE 23.7 from the original
Deuteranopia#11213Eno green cones; the most common form, about 1% of men; ΔE 25.3 from the original
Tritanopia#371524no blue cones; rare, and affects men and women equally; ΔE 22.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.38:1WCAG large text: AAA
Contrast with black, large text1.28:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.4Midnight blue · ΔE 27.4Rebecca purple · ΔE 34.9Purple · ΔE 36.9Indigo · ΔE 38.8Black · ΔE 39.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.38, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#133F0B
Analogous#1D0B3F, #3F0B2D
Triadic#3F370B, #0B3F37
Split complementary#2D3F0B, #0B3F1D
Tetradic#3F1D0B, #133F0B, #0B2D3F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C339DD
Lighter +30%#A922C1
Lighter +20%#831A96
Lighter +10%#5D136A
Darker −10%#110314
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3D0248
Less saturated −25%#311436

Channel breakdown

R55
G11
B63
Red55 (21.6%)
Green11 (4.3%)
Blue63 (24.7%)
Hue290.77°
Saturation (HSL)70.27%
Lightness14.51%
Dominant channelBlue
Hex per channelR 37 · G 0B · B 3F

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Every value on this page was computed from “370b3f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.