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Recognised as Colour

#477B87

  • #477B87
  • Cyan
  • Dark
  • Nearest: Slate grey

#477B87 is a cyan with RGB values 71, 123, 135 and HSL 191°, 31%, 40%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#477B87#477B87
HEX#477B87
RGBrgb(71, 123, 135)
RGB (0–1)0.2784, 0.4824, 0.5294
RGB percentages27.8%, 48.2%, 52.9%
HSLhsl(191.3, 31.1%, 40.4%)
HSV / HSBhsv(191.3, 47.4%, 52.9%)
CMYK47.4%, 8.9%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,684,679
CSS custom property--colour: #477B87;

Brightness & contrast

Relative luminance0.17255WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.72:1
Contrast with white4.72:1WCAG normal text: AA
Contrast with black4.45:1WCAG normal text: Fail
Greyscale equivalent#717171
Inverted#B88478

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#727888no red cones; affects about 1% of men; ΔE 15.6 from the original
Deuteranopia#687087no green cones; the most common form, about 1% of men; ΔE 16.4 from the original
Tritanopia#27807Fno blue cones; rare, and affects men and women equally; ΔE 12.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.72:1WCAG large text: AAA
Contrast with black, large text4.45:1WCAG large text: AA

Named colours

Slate grey · ΔE 12.6Light slate grey · ΔE 13.8Cadetblue · ΔE 14.5Teal · ΔE 15.3Dark cyan · ΔE 17.3Dim grey · ΔE 18.8
Nearest named CSS colourSlate grey (#708090)ΔE 12.64, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#875347
Analogous#478773, #475B87
Triadic#87477B, #7B8747
Split complementary#87475B, #877347
Tetradic#734787, #875347, #5B8747

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BDD7DD
Lighter +30%#9CC2CB
Lighter +20%#7BAEB9
Lighter +10%#5999A8
Darker −10%#355D66
Darker −20%#243E44
Darker −30%#122023
Darker −40%#010101
More saturated +25%#2D8BA1
Less saturated −25%#616B6D

Channel breakdown

R71
G123
B135
Red71 (27.8%)
Green123 (48.2%)
Blue135 (52.9%)
Hue191.25°
Saturation (HSL)31.07%
Lightness40.39%
Dominant channelBlue
Hex per channelR 47 · G 7B · B 87

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Every value on this page was computed from “477b87” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.