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Recognised as Colour

#668FFC

  • #668FFC
  • Blue
  • Dark
  • Nearest: Dodgerblue

#668FFC is a blue with RGB values 102, 143, 252 and HSL 224°, 96%, 69%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#668FFC#668FFC
HEX#668FFC
RGBrgb(102, 143, 252)
RGB (0–1)0.4, 0.5608, 0.9882
RGB percentages40%, 56.1%, 98.8%
HSLhsl(223.6, 96.2%, 69.4%)
HSV / HSBhsv(223.6, 59.5%, 98.8%)
CMYK59.5%, 43.3%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,721,532
CSS custom property--colour: #668FFC;

Brightness & contrast

Relative luminance0.29498WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.9:1
Contrast with white3.04:1WCAG normal text: Fail
Contrast with black6.9:1WCAG normal text: AA
Greyscale equivalent#8E8E8E
Inverted#997003

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D9BFFno red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#478DFAno green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#00A7B9no blue cones; rare, and affects men and women equally; ΔE 61.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.04:1WCAG large text: AA
Contrast with black, large text6.9:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 9.6Cornflower blue · ΔE 12.9Royal blue · ΔE 17Medium purple · ΔE 21.5Slate blue · ΔE 24Medium slateblue · ΔE 25.6
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 9.6, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FCD366
Analogous#66DAFC, #8866FC
Triadic#FC668F, #8FFC66
Split complementary#FC8866, #DAFC66
Tetradic#FC66DA, #FCD366, #66FC88

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FCFDFF
Lighter +20%#CAD8FE
Lighter +10%#98B4FD
Darker −10%#346AFB
Darker −20%#0547F7
Darker −30%#0439C5
Darker −40%#032A93
More saturated +25%#638EFF
Less saturated −25%#7A98E9

Channel breakdown

R102
G143
B252
Red102 (40%)
Green143 (56.1%)
Blue252 (98.8%)
Hue223.6°
Saturation (HSL)96.15%
Lightness69.41%
Dominant channelBlue
Hex per channelR 66 · G 8F · B FC

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Every value on this page was computed from “668ffc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.