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Recognised as Colour

#2A1640

  • #2A1640
  • Violet
  • Dark
  • Nearest: Dark slateblue

#2A1640 is a violet with RGB values 42, 22, 64 and HSL 269°, 49%, 17%. It is a dark colour, so white text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2A1640#2A1640
HEX#2A1640
RGBrgb(42, 22, 64)
RGB (0–1)0.1647, 0.0863, 0.251
RGB percentages16.5%, 8.6%, 25.1%
HSLhsl(268.6, 48.8%, 16.9%)
HSV / HSBhsv(268.6, 65.6%, 25.1%)
CMYK34.4%, 65.6%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,758,208
CSS custom property--colour: #2A1640;

Brightness & contrast

Relative luminance0.01436WCAG 2.x, 0 is black and 1 is white
Perceived brightness35.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.31:1
Contrast with white16.31:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#D5E9BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#051F41no red cones; affects about 1% of men; ΔE 15 from the original
Deuteranopia#0C203Fno green cones; the most common form, about 1% of men; ΔE 15.5 from the original
Tritanopia#261E28no blue cones; rare, and affects men and women equally; ΔE 22.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.31:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.3Midnight blue · ΔE 29.1Black · ΔE 33Rebecca purple · ΔE 39Dark slate grey · ΔE 41.9Indigo · ΔE 44.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.25, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2C4016
Analogous#161740, #3F1640
Triadic#402A16, #16402A
Split complementary#403F16, #174016
Tetradic#401617, #2C4016, #16403F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8E5BC7
Lighter +30%#753DB2
Lighter +20%#5C308C
Lighter +10%#432366
Darker −10%#11091A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#290B4B
Less saturated −25%#2B2135

Channel breakdown

R42
G22
B64
Red42 (16.5%)
Green22 (8.6%)
Blue64 (25.1%)
Hue268.57°
Saturation (HSL)48.84%
Lightness16.86%
Dominant channelBlue
Hex per channelR 2A · G 16 · B 40

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Every value on this page was computed from “2a1640” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.