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Recognised as Colour

#4791BC

  • #4791BC
  • Blue
  • Dark
  • Nearest: Steel blue

#4791BC is a blue with RGB values 71, 145, 188 and HSL 202°, 47%, 51%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4791BC#4791BC
HEX#4791BC
RGBrgb(71, 145, 188)
RGB (0–1)0.2784, 0.5686, 0.7373
RGB percentages27.8%, 56.9%, 73.7%
HSLhsl(202.1, 46.6%, 50.8%)
HSV / HSBhsv(202.1, 62.2%, 73.7%)
CMYK62.2%, 22.9%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,690,364
CSS custom property--colour: #4791BC;

Brightness & contrast

Relative luminance0.25221WCAG 2.x, 0 is black and 1 is white
Perceived brightness133.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.04:1
Contrast with white3.47:1WCAG normal text: Fail
Contrast with black6.04:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#B86E43

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7D90BEno red cones; affects about 1% of men; ΔE 14.8 from the original
Deuteranopia#6D84BBno green cones; the most common form, about 1% of men; ΔE 16.2 from the original
Tritanopia#009C9Fno blue cones; rare, and affects men and women equally; ΔE 28.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.47:1WCAG large text: AA
Contrast with black, large text6.04:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.1Light slate grey · ΔE 19.7Slate grey · ΔE 20.7Deep skyblue · ΔE 21.7Light skyblue · ΔE 22.5Sky blue · ΔE 23.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.07, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC7247
Analogous#47BCAC, #4757BC
Triadic#BC4791, #91BC47
Split complementary#BC4757, #BCAC47
Tetradic#AC47BC, #BC7247, #57BC47

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDEAF2
Lighter +30%#B7D4E5
Lighter +20%#92BED7
Lighter +10%#6CA7CA
Darker −10%#387598
Darker −20%#2A5873
Darker −30%#1C3C4E
Darker −40%#0F1F28
More saturated +25%#2899DB
Less saturated −25%#66899D

Channel breakdown

R71
G145
B188
Red71 (27.8%)
Green145 (56.9%)
Blue188 (73.7%)
Hue202.05°
Saturation (HSL)46.61%
Lightness50.78%
Dominant channelBlue
Hex per channelR 47 · G 91 · B BC

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Every value on this page was computed from “4791bc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.