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Recognised as Colour

#40177D

  • #40177D
  • Violet
  • Dark
  • Nearest: Indigo

#40177D is a violet with RGB values 64, 23, 125 and HSL 264°, 69%, 29%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#40177D#40177D
HEX#40177D
RGBrgb(64, 23, 125)
RGB (0–1)0.251, 0.0902, 0.4902
RGB percentages25.1%, 9%, 49%
HSLhsl(264.1, 68.9%, 29%)
HSV / HSBhsv(264.1, 81.6%, 49%)
CMYK48.8%, 81.6%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,200,317
CSS custom property--colour: #40177D;

Brightness & contrast

Relative luminance0.03183WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.83:1
Contrast with white12.83:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#BFE882

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003380no red cones; affects about 1% of men; ΔE 23.8 from the original
Deuteranopia#00307Bno green cones; the most common form, about 1% of men; ΔE 23.8 from the original
Tritanopia#2E344Ano blue cones; rare, and affects men and women equally; ΔE 52.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.83:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Indigo · ΔE 10.4Midnight blue · ΔE 11.4Rebecca purple · ΔE 12.4Navy · ΔE 17.8Dark slateblue · ΔE 20.3Dark blue · ΔE 21.6
Nearest named CSS colourIndigo (#4B0082)ΔE 10.38, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#547D17
Analogous#17217D, #73177D
Triadic#7D4017, #177D40
Split complementary#7D7317, #217D17
Tetradic#7D1721, #547D17, #177D73

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A57AE6
Lighter +30%#884EDF
Lighter +20%#6C27D3
Lighter +10%#561FA8
Darker −10%#2A0F52
Darker −20%#140727
Darker −30%#000000
Darker −40%#000000
More saturated +25%#3C0490
Less saturated −25%#44296A

Channel breakdown

R64
G23
B125
Red64 (25.1%)
Green23 (9%)
Blue125 (49%)
Hue264.12°
Saturation (HSL)68.92%
Lightness29.02%
Dominant channelBlue
Hex per channelR 40 · G 17 · B 7D

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Every value on this page was computed from “40177d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.