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Recognised as Colour

#5771B4

  • #5771B4
  • Blue
  • Dark
  • Nearest: Steel blue

#5771B4 is a blue with RGB values 87, 113, 180 and HSL 223°, 38%, 52%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#5771B4#5771B4
HEX#5771B4
RGBrgb(87, 113, 180)
RGB (0–1)0.3412, 0.4431, 0.7059
RGB percentages34.1%, 44.3%, 70.6%
HSLhsl(223.2, 38.3%, 52.4%)
HSV / HSBhsv(223.2, 51.7%, 70.6%)
CMYK51.7%, 37.2%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,730,740
CSS custom property--colour: #5771B4;

Brightness & contrast

Relative luminance0.17132WCAG 2.x, 0 is black and 1 is white
Perceived brightness116 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.74:1
Contrast with white4.74:1WCAG normal text: AA
Contrast with black4.43:1WCAG normal text: Fail
Greyscale equivalent#707070
Inverted#A88E4B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5777B7no red cones; affects about 1% of men; ΔE 3.5 from the original
Deuteranopia#4C6FB3no green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#2C7F8Ano blue cones; rare, and affects men and women equally; ΔE 39.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.74:1WCAG large text: AAA
Contrast with black, large text4.43:1WCAG large text: AA

Named colours

Steel blue · ΔE 15.8Cornflower blue · ΔE 17.3Dark slateblue · ΔE 24.2Dodgerblue · ΔE 27.2Medium purple · ΔE 30.1Slate grey · ΔE 30.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 15.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B49A57
Analogous#57A0B4, #6C57B4
Triadic#B45771, #71B457
Split complementary#B46C57, #9FB457
Tetradic#B457A0, #B49A57, #57B46C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4E8F3
Lighter +30%#C1CAE3
Lighter +20%#9EADD3
Lighter +10%#7A8FC4
Darker −10%#435A95
Darker −20%#334572
Darker −30%#232F4F
Darker −40%#131A2C
More saturated +25%#3964D2
Less saturated −25%#757E96

Channel breakdown

R87
G113
B180
Red87 (34.1%)
Green113 (44.3%)
Blue180 (70.6%)
Hue223.23°
Saturation (HSL)38.27%
Lightness52.35%
Dominant channelBlue
Hex per channelR 57 · G 71 · B B4

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Every value on this page was computed from “5771b4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.