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Colour

#1688FF

  • #1688FF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1688FF is a blue with RGB values 22, 136, 255 and HSL 211°, 100%, 54%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1688FF#1688FF
HEX#1688FF
RGBrgb(22, 136, 255)
RGB (0–1)0.0863, 0.5333, 1
RGB percentages8.6%, 53.3%, 100%
HSLhsl(210.6, 100%, 54.3%)
HSV / HSBhsv(210.6, 91.4%, 100%)
CMYK91.4%, 46.7%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,476,863
CSS custom property--colour: #1688FF;

Brightness & contrast

Relative luminance0.24999WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6:1
Contrast with white3.5:1WCAG normal text: Fail
Contrast with black6:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#E97700

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4393FFno red cones; affects about 1% of men; ΔE 8.1 from the original
Deuteranopia#0080FDno green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#00A5B7no blue cones; rare, and affects men and women equally; ΔE 64.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.5:1WCAG large text: AA
Contrast with black, large text6:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6.3Royal blue · ΔE 15.1Cornflower blue · ΔE 19.2Slate blue · ΔE 26.3Medium slateblue · ΔE 27.1Medium purple · ΔE 28.2
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.27, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF8D16
Analogous#16FCFF, #1916FF
Triadic#FF1688, #88FF16
Split complementary#FF1816, #FDFF16
Tetradic#FF16FC, #FF8D16, #16FF18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E2F0FF
Lighter +30%#AFD6FF
Lighter +20%#7CBCFF
Lighter +10%#49A2FF
Darker −10%#006FE2
Darker −20%#0056AF
Darker −30%#003D7C
Darker −40%#002449
More saturated +25%#1688FF
Less saturated −25%#3389E2

Channel breakdown

R22
G136
B255
Red22 (8.6%)
Green136 (53.3%)
Blue255 (100%)
Hue210.64°
Saturation (HSL)100%
Lightness54.31%
Dominant channelBlue
Hex per channelR 16 · G 88 · B FF

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Every value on this page was computed from “1688ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.