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Recognised as Colour

#4E91BB

  • #4E91BB
  • Blue
  • Dark
  • Nearest: Steel blue

#4E91BB is a blue with RGB values 78, 145, 187 and HSL 203°, 44%, 52%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4E91BB#4E91BB
HEX#4E91BB
RGBrgb(78, 145, 187)
RGB (0–1)0.3059, 0.5686, 0.7333
RGB percentages30.6%, 56.9%, 73.3%
HSLhsl(203.1, 44.5%, 52%)
HSV / HSBhsv(203.1, 58.3%, 73.3%)
CMYK58.3%, 22.5%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,149,115
CSS custom property--colour: #4E91BB;

Brightness & contrast

Relative luminance0.25458WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.09:1
Contrast with white3.45:1WCAG normal text: Fail
Contrast with black6.09:1WCAG normal text: AA
Greyscale equivalent#868686
Inverted#B16E44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7E90BDno red cones; affects about 1% of men; ΔE 13.7 from the original
Deuteranopia#6F85BAno green cones; the most common form, about 1% of men; ΔE 14.8 from the original
Tritanopia#009C9Fno blue cones; rare, and affects men and women equally; ΔE 29 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.45:1WCAG large text: AA
Contrast with black, large text6.09:1WCAG large text: AAA

Named colours

Steel blue · ΔE 7.9Light slate grey · ΔE 18.5Slate grey · ΔE 19.5Light skyblue · ΔE 22.3Deep skyblue · ΔE 22.5Sky blue · ΔE 23.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 7.93, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB784E
Analogous#4EBBAE, #4E5BBB
Triadic#BB4E91, #91BB4E
Split complementary#BB4E5B, #BBAE4E
Tetradic#AE4EBB, #BB784E, #5BBB4E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1EDF4
Lighter +30%#BDD6E5
Lighter +20%#98BFD7
Lighter +10%#73A8C9
Darker −10%#3B769B
Darker −20%#2D5A76
Darker −30%#1F3E51
Darker −40%#11222C
More saturated +25%#2F98DA
Less saturated −25%#6D8A9C

Channel breakdown

R78
G145
B187
Red78 (30.6%)
Green145 (56.9%)
Blue187 (73.3%)
Hue203.12°
Saturation (HSL)44.49%
Lightness51.96%
Dominant channelBlue
Hex per channelR 4E · G 91 · B BB

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Every value on this page was computed from “4e91bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.