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Colour

#576D9B

  • #576D9B
  • Blue
  • Dark
  • Nearest: Steel blue

#576D9B is a blue with RGB values 87, 109, 155 and HSL 221°, 28%, 47%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#576D9B#576D9B
HEX#576D9B
RGBrgb(87, 109, 155)
RGB (0–1)0.3412, 0.4275, 0.6078
RGB percentages34.1%, 42.7%, 60.8%
HSLhsl(220.6, 28.1%, 47.5%)
HSV / HSBhsv(220.6, 43.9%, 60.8%)
CMYK43.9%, 29.7%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,729,691
CSS custom property--colour: #576D9B;

Brightness & contrast

Relative luminance0.1533WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.16:1
Contrast with white5.16:1WCAG normal text: AA
Contrast with black4.07:1WCAG normal text: Fail
Greyscale equivalent#6C6C6C
Inverted#A89264

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D719Dno red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#556A9Ano green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#3F777Dno blue cones; rare, and affects men and women equally; ΔE 28.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.16:1WCAG large text: AAA
Contrast with black, large text4.07:1WCAG large text: AA

Named colours

Steel blue · ΔE 11.7Slate grey · ΔE 19.4Light slate grey · ΔE 20.3Cornflower blue · ΔE 27.4Dim grey · ΔE 27.9Gray · ΔE 28.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 11.65, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B8557
Analogous#578F9B, #63579B
Triadic#9B576D, #6D9B57
Split complementary#9B6357, #8F9B57
Tetradic#9B578F, #9B8557, #579B63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D6DCE8
Lighter +30%#B5C0D6
Lighter +20%#95A4C3
Lighter +10%#7488B1
Darker −10%#45567A
Darker −20%#323F5A
Darker −30%#202839
Darker −40%#0E1118
More saturated +25%#3962B9
Less saturated −25%#75787D

Channel breakdown

R87
G109
B155
Red87 (34.1%)
Green109 (42.7%)
Blue155 (60.8%)
Hue220.59°
Saturation (HSL)28.1%
Lightness47.45%
Dominant channelBlue
Hex per channelR 57 · G 6D · B 9B

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Every value on this page was computed from “576d9b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.