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Recognised as Colour

#575A8A

  • #575A8A
  • Blue
  • Dark
  • Nearest: Steel blue

#575A8A is a blue with RGB values 87, 90, 138 and HSL 236°, 23%, 44%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#575A8A#575A8A
HEX#575A8A
RGBrgb(87, 90, 138)
RGB (0–1)0.3412, 0.3529, 0.5412
RGB percentages34.1%, 35.3%, 54.1%
HSLhsl(236.5, 22.7%, 44.1%)
HSV / HSBhsv(236.5, 37%, 54.1%)
CMYK37%, 34.8%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,724,810
CSS custom property--colour: #575A8A;

Brightness & contrast

Relative luminance0.11174WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.49:1
Contrast with white6.49:1WCAG normal text: AA
Contrast with black3.23:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#A8A575

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4B608Cno red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#485C89no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#49636Bno blue cones; rare, and affects men and women equally; ΔE 26.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.49:1WCAG large text: AAA
Contrast with black, large text3.23:1WCAG large text: AA

Named colours

Steel blue · ΔE 20.5Dark slateblue · ΔE 23Slate grey · ΔE 24.9Light slate grey · ΔE 26.3Dim grey · ΔE 29.6Cornflower blue · ΔE 31.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A8757
Analogous#57738A, #6E578A
Triadic#8A575A, #5A8A57
Split complementary#8A6E57, #738A57
Tetradic#8A5773, #8A8757, #578A6E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDCEE0
Lighter +30%#AEB0CC
Lighter +20%#8F91B8
Lighter +10%#6F73A5
Darker −10%#43466B
Darker −20%#30314B
Darker −30%#1C1D2C
Darker −40%#08080D
More saturated +25%#3B41A6
Less saturated −25%#717171

Channel breakdown

R87
G90
B138
Red87 (34.1%)
Green90 (35.3%)
Blue138 (54.1%)
Hue236.47°
Saturation (HSL)22.67%
Lightness44.12%
Dominant channelBlue
Hex per channelR 57 · G 5A · B 8A

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Every value on this page was computed from “575a8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.