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Recognised as Colour

#57718D

  • #57718D
  • Blue
  • Dark
  • Nearest: Slate grey

#57718D is a blue with RGB values 87, 113, 141 and HSL 211°, 24%, 45%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#57718D#57718D
HEX#57718D
RGBrgb(87, 113, 141)
RGB (0–1)0.3412, 0.4431, 0.5529
RGB percentages34.1%, 44.3%, 55.3%
HSLhsl(211.1, 23.7%, 44.7%)
HSV / HSBhsv(211.1, 38.3%, 55.3%)
CMYK38.3%, 19.9%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,730,701
CSS custom property--colour: #57718D;

Brightness & contrast

Relative luminance0.1576WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.06:1
Contrast with white5.06:1WCAG normal text: AA
Contrast with black4.15:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#A88E72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#66728Eno red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#606C8Cno green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#45777Ano blue cones; rare, and affects men and women equally; ΔE 18 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.06:1WCAG large text: AAA
Contrast with black, large text4.15:1WCAG large text: AA

Named colours

Slate grey · ΔE 9.9Light slate grey · ΔE 11.8Steel blue · ΔE 15.2Dim grey · ΔE 18.6Gray · ΔE 19.7Dark slate grey · ΔE 23.3
Nearest named CSS colourSlate grey (#708090)ΔE 9.93, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D7357
Analogous#578C8D, #58578D
Triadic#8D5771, #718D57
Split complementary#8D5857, #8C8D57
Tetradic#8D578C, #8D7357, #578D58

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFD8E1
Lighter +30%#AFBECE
Lighter +20%#90A4BA
Lighter +10%#708AA7
Darker −10%#44586D
Darker −20%#303E4E
Darker −30%#1D252E
Darker −40%#090C0F
More saturated +25%#3B70AA
Less saturated −25%#727272

Channel breakdown

R87
G113
B141
Red87 (34.1%)
Green113 (44.3%)
Blue141 (55.3%)
Hue211.11°
Saturation (HSL)23.68%
Lightness44.71%
Dominant channelBlue
Hex per channelR 57 · G 71 · B 8D

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Every value on this page was computed from “57718d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.