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Recognised as Colour

#575A8E

  • #575A8E
  • Blue
  • Dark
  • Nearest: Steel blue

#575A8E is a blue with RGB values 87, 90, 142 and HSL 237°, 24%, 45%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#575A8E#575A8E
HEX#575A8E
RGBrgb(87, 90, 142)
RGB (0–1)0.3412, 0.3529, 0.5569
RGB percentages34.1%, 35.3%, 55.7%
HSLhsl(236.7, 24%, 44.9%)
HSV / HSBhsv(236.7, 38.7%, 55.7%)
CMYK38.7%, 36.6%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,724,814
CSS custom property--colour: #575A8E;

Brightness & contrast

Relative luminance0.11292WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.45:1
Contrast with white6.45:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#A8A571

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#496090no red cones; affects about 1% of men; ΔE 7.1 from the original
Deuteranopia#465D8Dno green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#47646Dno blue cones; rare, and affects men and women equally; ΔE 29.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.45:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Steel blue · ΔE 20.8Dark slateblue · ΔE 21Slate grey · ΔE 26.8Light slate grey · ΔE 28.1Cornflower blue · ΔE 29.9Dim grey · ΔE 32
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.83, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E8B57
Analogous#57758E, #70578E
Triadic#8E575A, #5A8E57
Split complementary#8E7057, #758E57
Tetradic#8E5775, #8E8B57, #578E70

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFD0E2
Lighter +30%#B0B1CE
Lighter +20%#9092BB
Lighter +10%#7073A8
Darker −10%#44466E
Darker −20%#30324F
Darker −30%#1D1E2F
Darker −40%#090A10
More saturated +25%#3A40AB
Less saturated −25%#737373

Channel breakdown

R87
G90
B142
Red87 (34.1%)
Green90 (35.3%)
Blue142 (55.7%)
Hue236.73°
Saturation (HSL)24.02%
Lightness44.9%
Dominant channelBlue
Hex per channelR 57 · G 5A · B 8E

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Every value on this page was computed from “575a8e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.