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Colour

#4FBBFF

  • #4FBBFF
  • Blue
  • Dark
  • Nearest: Deep skyblue

#4FBBFF is a blue with RGB values 79, 187, 255 and HSL 203°, 100%, 65%. It is a dark colour, so black text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#4FBBFF#4FBBFF
HEX#4FBBFF
RGBrgb(79, 187, 255)
RGB (0–1)0.3098, 0.7333, 1
RGB percentages31%, 73.3%, 100%
HSLhsl(203.2, 100%, 65.5%)
HSV / HSBhsv(203.2, 69%, 100%)
CMYK69%, 26.7%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,225,471
CSS custom property--colour: #4FBBFF;

Brightness & contrast

Relative luminance0.44423WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.88:1
Contrast with white2.12:1WCAG normal text: Fail
Contrast with black9.88:1WCAG normal text: AAA
Greyscale equivalent#A9A9A9
Inverted#B04400

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9BBBFFno red cones; affects about 1% of men; ΔE 16.8 from the original
Deuteranopia#83AAFEno green cones; the most common form, about 1% of men; ΔE 19.3 from the original
Tritanopia#00CCD2no blue cones; rare, and affects men and women equally; ΔE 40.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.12:1WCAG large text: Fail
Contrast with black, large text9.88:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 7.8Light skyblue · ΔE 15.8Sky blue · ΔE 22.8Cornflower blue · ΔE 22.9Steel blue · ΔE 23.3Light steelblue · ΔE 29.2
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 7.83, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF934F
Analogous#4FFFEB, #4F63FF
Triadic#FF4FBB, #BBFF4F
Split complementary#FF4F63, #FFEB4F
Tetradic#EB4FFF, #FF934F, #63FF4F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E8F6FF
Lighter +20%#B5E2FF
Lighter +10%#82CFFF
Darker −10%#1CA7FF
Darker −20%#008EE8
Darker −30%#006FB5
Darker −40%#005082
More saturated +25%#4FBBFF
Less saturated −25%#65B6E9

Channel breakdown

R79
G187
B255
Red79 (31%)
Green187 (73.3%)
Blue255 (100%)
Hue203.18°
Saturation (HSL)100%
Lightness65.49%
Dominant channelBlue
Hex per channelR 4F · G BB · B FF

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Every value on this page was computed from “4fbbff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.