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Recognised as Colour

#687EE6

  • #687EE6
  • Blue
  • Dark
  • Nearest: Royal blue

#687EE6 is a blue with RGB values 104, 126, 230 and HSL 230°, 72%, 65%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#687EE6#687EE6
HEX#687EE6
RGBrgb(104, 126, 230)
RGB (0–1)0.4078, 0.4941, 0.902
RGB percentages40.8%, 49.4%, 90.2%
HSLhsl(229.5, 71.6%, 65.5%)
HSV / HSBhsv(229.5, 54.8%, 90.2%)
CMYK54.8%, 45.2%, 0%, 9.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,848,230
CSS custom property--colour: #687EE6;

Brightness & contrast

Relative luminance0.23578WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.72:1
Contrast with white3.67:1WCAG normal text: Fail
Contrast with black5.72:1WCAG normal text: AA
Greyscale equivalent#818181
Inverted#978119

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F8BEAno red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#3F80E4no green cones; the most common form, about 1% of men; ΔE 9.1 from the original
Tritanopia#2295A7no blue cones; rare, and affects men and women equally; ΔE 59 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.67:1WCAG large text: AA
Contrast with black, large text5.72:1WCAG large text: AAA

Named colours

Royal blue · ΔE 13.5Dodgerblue · ΔE 14.6Cornflower blue · ΔE 15.1Medium purple · ΔE 16.1Slate blue · ΔE 17.9Medium slateblue · ΔE 22.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E6D068
Analogous#68BDE6, #9168E6
Triadic#E6687E, #7EE668
Split complementary#E69168, #BDE668
Tetradic#E668BD, #E6D068, #68E691

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EBEEFC
Lighter +20%#C0C9F4
Lighter +10%#94A3ED
Darker −10%#3C59DF
Darker −20%#213EC7
Darker −30%#1A309B
Darker −40%#122370
More saturated +25%#5270FC
Less saturated −25%#7E8CD0

Channel breakdown

R104
G126
B230
Red104 (40.8%)
Green126 (49.4%)
Blue230 (90.2%)
Hue229.52°
Saturation (HSL)71.59%
Lightness65.49%
Dominant channelBlue
Hex per channelR 68 · G 7E · B E6

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Every value on this page was computed from “687ee6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.