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Recognised as Colour

#371C4B

  • #371C4B
  • Violet
  • Dark
  • Nearest: Dark slateblue

#371C4B is a violet with RGB values 55, 28, 75 and HSL 274°, 46%, 20%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#371C4B#371C4B
HEX#371C4B
RGBrgb(55, 28, 75)
RGB (0–1)0.2157, 0.1098, 0.2941
RGB percentages21.6%, 11%, 29.4%
HSLhsl(274.5, 45.6%, 20.2%)
HSV / HSBhsv(274.5, 62.7%, 29.4%)
CMYK26.7%, 62.7%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,611,723
CSS custom property--colour: #371C4B;

Brightness & contrast

Relative luminance0.02151WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.68:1
Contrast with white14.68:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#C8E3B4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C274Dno red cones; affects about 1% of men; ΔE 17.9 from the original
Deuteranopia#16294Ano green cones; the most common form, about 1% of men; ΔE 18.8 from the original
Tritanopia#342530no blue cones; rare, and affects men and women equally; ΔE 24.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.68:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23.3Midnight blue · ΔE 26.8Rebecca purple · ΔE 34.4Black · ΔE 37.3Purple · ΔE 40Indigo · ΔE 40.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 23.28, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#304B1C
Analogous#1F1C4B, #4B1C48
Triadic#4B371C, #1C4B37
Split complementary#484B1C, #1C4B1F
Tetradic#4B1F1C, #304B1C, #1C484B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A06BC8
Lighter +30%#8946BA
Lighter +20%#6D3895
Lighter +10%#522A70
Darker −10%#1C0E26
Darker −20%#010001
Darker −30%#000000
Darker −40%#000000
More saturated +25%#390F58
Less saturated −25%#35293E

Channel breakdown

R55
G28
B75
Red55 (21.6%)
Green28 (11%)
Blue75 (29.4%)
Hue274.47°
Saturation (HSL)45.63%
Lightness20.2%
Dominant channelBlue
Hex per channelR 37 · G 1C · B 4B

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Every value on this page was computed from “371c4b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.