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Recognised as Colour

#40255E

  • #40255E
  • Violet
  • Dark
  • Nearest: Dark slateblue

#40255E is a violet with RGB values 64, 37, 94 and HSL 268°, 44%, 26%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#40255E#40255E
HEX#40255E
RGBrgb(64, 37, 94)
RGB (0–1)0.251, 0.1451, 0.3686
RGB percentages25.1%, 14.5%, 36.9%
HSLhsl(268.4, 43.5%, 25.7%)
HSV / HSBhsv(268.4, 60.6%, 36.9%)
CMYK31.9%, 60.6%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,203,870
CSS custom property--colour: #40255E;

Brightness & contrast

Relative luminance0.03221WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.77:1
Contrast with white12.77:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#BFDAA1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0E3260no red cones; affects about 1% of men; ΔE 19.5 from the original
Deuteranopia#18325Dno green cones; the most common form, about 1% of men; ΔE 19.3 from the original
Tritanopia#3A303Dno blue cones; rare, and affects men and women equally; ΔE 29.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.77:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.1Midnight blue · ΔE 21.7Rebecca purple · ΔE 27.5Purple · ΔE 35.1Indigo · ΔE 35.3Slate blue · ΔE 38.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.11, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#435E25
Analogous#25275E, #5D255E
Triadic#5E4025, #255E40
Split complementary#5E5D25, #275E25
Tetradic#5E2527, #435E25, #255E5D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A581CE
Lighter +30%#8B5DBF
Lighter +20%#7242A7
Lighter +10%#593383
Darker −10%#271739
Darker −20%#0E0815
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3F156E
Less saturated −25%#41354E

Channel breakdown

R64
G37
B94
Red64 (25.1%)
Green37 (14.5%)
Blue94 (36.9%)
Hue268.42°
Saturation (HSL)43.51%
Lightness25.69%
Dominant channelBlue
Hex per channelR 40 · G 25 · B 5E

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Every value on this page was computed from “40255e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.