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Recognised as Colour

#575C6F

  • #575C6F
  • Blue
  • Dark
  • Nearest: Dim grey

#575C6F is a blue with RGB values 87, 92, 111 and HSL 228°, 12%, 39%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dim grey.

Colour values

#575C6F#575C6F
HEX#575C6F
RGBrgb(87, 92, 111)
RGB (0–1)0.3412, 0.3608, 0.4353
RGB percentages34.1%, 36.1%, 43.5%
HSLhsl(227.5, 12.1%, 38.8%)
HSV / HSBhsv(227.5, 21.6%, 43.5%)
CMYK21.6%, 17.1%, 0%, 56.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,725,295
CSS custom property--colour: #575C6F;

Brightness & contrast

Relative luminance0.10828WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.63:1
Contrast with white6.63:1WCAG normal text: AA
Contrast with black3.17:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#A8A390

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#575E70no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#555C6Fno green cones; the most common form, about 1% of men; ΔE 0.8 from the original
Tritanopia#515F62no blue cones; rare, and affects men and women equally; ΔE 10.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.63:1WCAG large text: AAA
Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Dim grey · ΔE 12.8Slate grey · ΔE 14.4Light slate grey · ΔE 17.3Dark slate grey · ΔE 18.1Gray · ΔE 18.5Steel blue · ΔE 25.5
Nearest named CSS colourDim grey (#696969)ΔE 12.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6F6A57
Analogous#57686F, #5E576F
Triadic#6F575C, #5C6F57
Split complementary#6F5E57, #686F57
Tetradic#6F5768, #6F6A57, #576F5E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2C5D0
Lighter +30%#A6AAB9
Lighter +20%#898FA3
Lighter +10%#6D748C
Darker −10%#414452
Darker −20%#2A2D36
Darker −30%#141519
Darker −40%#000000
More saturated +25%#3E4E88
Less saturated −25%#636363

Channel breakdown

R87
G92
B111
Red87 (34.1%)
Green92 (36.1%)
Blue111 (43.5%)
Hue227.5°
Saturation (HSL)12.12%
Lightness38.82%
Dominant channelBlue
Hex per channelR 57 · G 5C · B 6F

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Every value on this page was computed from “575c6f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.