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Recognised as Colour

#587BBC

  • #587BBC
  • Blue
  • Dark
  • Nearest: Steel blue

#587BBC is a blue with RGB values 88, 123, 188 and HSL 219°, 43%, 54%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#587BBC#587BBC
HEX#587BBC
RGBrgb(88, 123, 188)
RGB (0–1)0.3451, 0.4824, 0.7373
RGB percentages34.5%, 48.2%, 73.7%
HSLhsl(219, 42.7%, 54.1%)
HSV / HSBhsv(219, 53.2%, 73.7%)
CMYK53.2%, 34.6%, 0%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,798,844
CSS custom property--colour: #587BBC;

Brightness & contrast

Relative luminance0.19871WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.97:1
Contrast with white4.22:1WCAG normal text: Fail
Contrast with black4.97:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#A78443

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6180BFno red cones; affects about 1% of men; ΔE 2.6 from the original
Deuteranopia#5577BBno green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#248993no blue cones; rare, and affects men and women equally; ΔE 39.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.22:1WCAG large text: AA
Contrast with black, large text4.97:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.1Cornflower blue · ΔE 15.5Dodgerblue · ΔE 26.8Light slate grey · ΔE 28.5Slate grey · ΔE 28.7Dark slateblue · ΔE 28.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.09, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BC9958
Analogous#58ADBC, #6758BC
Triadic#BC587B, #7BBC58
Split complementary#BC6758, #ADBC58
Tetradic#BC58AD, #BC9958, #58BC67

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAEEF6
Lighter +30%#C5D1E8
Lighter +20%#A1B5D9
Lighter +10%#7C98CB
Darker −10%#4062A1
Darker −20%#324C7C
Darker −30%#233658
Darker −40%#151F33
More saturated +25%#3B72D9
Less saturated −25%#75849F

Channel breakdown

R88
G123
B188
Red88 (34.5%)
Green123 (48.2%)
Blue188 (73.7%)
Hue219°
Saturation (HSL)42.74%
Lightness54.12%
Dominant channelBlue
Hex per channelR 58 · G 7B · B BC

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Every value on this page was computed from “587bbc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.