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Recognised as Colour

#6687FB

  • #6687FB
  • Blue
  • Dark
  • Nearest: Royal blue

#6687FB is a blue with RGB values 102, 135, 251 and HSL 227°, 95%, 69%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#6687FB#6687FB
HEX#6687FB
RGBrgb(102, 135, 251)
RGB (0–1)0.4, 0.5294, 0.9843
RGB percentages40%, 52.9%, 98.4%
HSLhsl(226.7, 94.9%, 69.2%)
HSV / HSBhsv(226.7, 59.4%, 98.4%)
CMYK59.4%, 46.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,719,483
CSS custom property--colour: #6687FB;

Brightness & contrast

Relative luminance0.27118WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.42:1
Contrast with white3.27:1WCAG normal text: Fail
Contrast with black6.42:1WCAG normal text: AA
Greyscale equivalent#888888
Inverted#997804

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F95FFno red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#3688F9no green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#00A1B5no blue cones; rare, and affects men and women equally; ΔE 65 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.27:1WCAG large text: AA
Contrast with black, large text6.42:1WCAG large text: AAA

Named colours

Royal blue · ΔE 12.4Dodgerblue · ΔE 12.8Cornflower blue · ΔE 18.3Medium purple · ΔE 18.7Slate blue · ΔE 19.6Medium slateblue · ΔE 20.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FBDA66
Analogous#66D1FB, #9066FB
Triadic#FB6687, #87FB66
Split complementary#FB9066, #D1FB66
Tetradic#FB66D1, #FBDA66, #66FB90

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FBFCFF
Lighter +20%#C9D5FE
Lighter +10%#98AEFC
Darker −10%#3460FA
Darker −20%#063BF5
Darker −30%#052FC3
Darker −40%#042391
More saturated +25%#6285FF
Less saturated −25%#7A92E7

Channel breakdown

R102
G135
B251
Red102 (40%)
Green135 (52.9%)
Blue251 (98.4%)
Hue226.71°
Saturation (HSL)94.9%
Lightness69.22%
Dominant channelBlue
Hex per channelR 66 · G 87 · B FB

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Every value on this page was computed from “6687fb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.