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Recognised as Colour

#491FF1

  • #491FF1
  • Blue
  • Dark
  • Nearest: Medium blue

#491FF1 is a blue with RGB values 73, 31, 241 and HSL 252°, 88%, 53%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#491FF1#491FF1
HEX#491FF1
RGBrgb(73, 31, 241)
RGB (0–1)0.2863, 0.1216, 0.9451
RGB percentages28.6%, 12.2%, 94.5%
HSLhsl(252, 88.2%, 53.3%)
HSV / HSBhsv(252, 87.1%, 94.5%)
CMYK69.7%, 87.1%, 0%, 5.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,792,305
CSS custom property--colour: #491FF1;

Brightness & contrast

Relative luminance0.08747WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.64:1
Contrast with white7.64:1WCAG normal text: AAA
Contrast with black2.75:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#B6E00E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005BF6no red cones; affects about 1% of men; ΔE 35.5 from the original
Deuteranopia#004BEEno green cones; the most common form, about 1% of men; ΔE 27.1 from the original
Tritanopia#006890no blue cones; rare, and affects men and women equally; ΔE 104.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.64:1WCAG large text: AAA
Contrast with black, large text2.75:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11.6Blue · ΔE 15.9Blue violet · ΔE 20.9Dark violet · ΔE 25.1Dark orchid · ΔE 35.8Dark blue · ΔE 39
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C7F11F
Analogous#1F5EF1, #B21FF1
Triadic#F1491F, #1FF149
Split complementary#F1B21F, #5EF11F
Tetradic#F11F5E, #C7F11F, #1FF1B2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5DFFD
Lighter +30%#BEAFFA
Lighter +20%#977FF7
Lighter +10%#704FF4
Darker −10%#340DD0
Darker −20%#280AA0
Darker −30%#1C0770
Darker −40%#100440
More saturated +25%#4111FF
Less saturated −25%#5B3DD3

Channel breakdown

R73
G31
B241
Red73 (28.6%)
Green31 (12.2%)
Blue241 (94.5%)
Hue252°
Saturation (HSL)88.24%
Lightness53.33%
Dominant channelBlue
Hex per channelR 49 · G 1F · B F1

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Every value on this page was computed from “491ff1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.