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Recognised as Colour

#688CFE

  • #688CFE
  • Blue
  • Dark
  • Nearest: Dodgerblue

#688CFE is a blue with RGB values 104, 140, 254 and HSL 226°, 99%, 70%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#688CFE#688CFE
HEX#688CFE
RGBrgb(104, 140, 254)
RGB (0–1)0.4078, 0.549, 0.9961
RGB percentages40.8%, 54.9%, 99.6%
HSLhsl(225.6, 98.7%, 70.2%)
HSV / HSBhsv(225.6, 59.1%, 99.6%)
CMYK59.1%, 44.9%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,851,838
CSS custom property--colour: #688CFE;

Brightness & contrast

Relative luminance0.28855WCAG 2.x, 0 is black and 1 is white
Perceived brightness148.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.77:1
Contrast with white3.1:1WCAG normal text: Fail
Contrast with black6.77:1WCAG normal text: AA
Greyscale equivalent#8D8D8D
Inverted#977301

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5699FFno red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#408CFCno green cones; the most common form, about 1% of men; ΔE 7.2 from the original
Tritanopia#00A6B9no blue cones; rare, and affects men and women equally; ΔE 64.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.1:1WCAG large text: AA
Contrast with black, large text6.77:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.4Royal blue · ΔE 14.6Cornflower blue · ΔE 16.3Medium purple · ΔE 19.9Slate blue · ΔE 21.7Medium slateblue · ΔE 22.4
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FEDA68
Analogous#68D7FE, #8F68FE
Triadic#FE688C, #8CFE68
Split complementary#FE8F68, #D7FE68
Tetradic#FE68D7, #FEDA68, #68FE8F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#CDD9FF
Lighter +10%#9BB3FE
Darker −10%#3565FE
Darker −20%#033FFD
Darker −30%#0132CC
Darker −40%#012599
More saturated +25%#678BFF
Less saturated −25%#7B96EB

Channel breakdown

R104
G140
B254
Red104 (40.8%)
Green140 (54.9%)
Blue254 (99.6%)
Hue225.6°
Saturation (HSL)98.68%
Lightness70.2%
Dominant channelBlue
Hex per channelR 68 · G 8C · B FE

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Every value on this page was computed from “688cfe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.