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Recognised as Colour

#5BBDFF

  • #5BBDFF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#5BBDFF is a blue with RGB values 91, 189, 255 and HSL 204°, 100%, 68%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#5BBDFF#5BBDFF
HEX#5BBDFF
RGBrgb(91, 189, 255)
RGB (0–1)0.3569, 0.7412, 1
RGB percentages35.7%, 74.1%, 100%
HSLhsl(204.1, 100%, 67.8%)
HSV / HSBhsv(204.1, 64.3%, 100%)
CMYK64.3%, 25.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,012,415
CSS custom property--colour: #5BBDFF;

Brightness & contrast

Relative luminance0.45839WCAG 2.x, 0 is black and 1 is white
Perceived brightness175.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.17:1
Contrast with white2.07:1WCAG normal text: Fail
Contrast with black10.17:1WCAG normal text: AAA
Greyscale equivalent#ADADAD
Inverted#A44200

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9FBDFFno red cones; affects about 1% of men; ΔE 16 from the original
Deuteranopia#89ADFEno green cones; the most common form, about 1% of men; ΔE 18.2 from the original
Tritanopia#00CDD4no blue cones; rare, and affects men and women equally; ΔE 39.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.07:1WCAG large text: Fail
Contrast with black, large text10.17:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 8.7Light skyblue · ΔE 14.1Sky blue · ΔE 21.4Cornflower blue · ΔE 23.2Steel blue · ΔE 23.3Light steelblue · ΔE 27.4
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 8.74, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9D5B
Analogous#5BFFEF, #5B6BFF
Triadic#FF5BBD, #BDFF5B
Split complementary#FF5B6B, #FFEF5B
Tetradic#EF5BFF, #FF9D5B, #6BFF5B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F4FBFF
Lighter +20%#C1E6FF
Lighter +10%#8ED2FF
Darker −10%#28A8FF
Darker −20%#0092F4
Darker −30%#0073C1
Darker −40%#00558E
More saturated +25%#5BBDFF
Less saturated −25%#70B9EB

Channel breakdown

R91
G189
B255
Red91 (35.7%)
Green189 (74.1%)
Blue255 (100%)
Hue204.15°
Saturation (HSL)100%
Lightness67.84%
Dominant channelBlue
Hex per channelR 5B · G BD · B FF

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Every value on this page was computed from “5bbdff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.