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Colour

#3166DE

  • #3166DE
  • Blue
  • Dark
  • Nearest: Royal blue

#3166DE is a blue with RGB values 49, 102, 222 and HSL 222°, 72%, 53%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#3166DE#3166DE
HEX#3166DE
RGBrgb(49, 102, 222)
RGB (0–1)0.1922, 0.4, 0.8706
RGB percentages19.2%, 40%, 87.1%
HSLhsl(221.6, 72.4%, 53.1%)
HSV / HSBhsv(221.6, 77.9%, 87.1%)
CMYK77.9%, 54.1%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,237,598
CSS custom property--colour: #3166DE;

Brightness & contrast

Relative luminance0.1543WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.14:1
Contrast with white5.14:1WCAG normal text: AA
Contrast with black4.09:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#CE9921

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0076E2no red cones; affects about 1% of men; ΔE 12.7 from the original
Deuteranopia#0066DCno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#008498no blue cones; rare, and affects men and women equally; ΔE 67.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.14:1WCAG large text: AAA
Contrast with black, large text4.09:1WCAG large text: AA

Named colours

Royal blue · ΔE 2.2Slate blue · ΔE 13.8Medium slateblue · ΔE 17Dodgerblue · ΔE 20.3Medium purple · ΔE 21.7Cornflower blue · ΔE 28
Nearest named CSS colourRoyal blue (#4169E1)ΔE 2.15, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DEA931
Analogous#31BCDE, #5331DE
Triadic#DE3166, #66DE31
Split complementary#DE5331, #BCDE31
Tetradic#DE31BC, #DEA931, #31DE53

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E1E9FA
Lighter +30%#B5C8F3
Lighter +20%#89A7EC
Lighter +10%#5D87E5
Darker −10%#1E4FBE
Darker −20%#173D92
Darker −30%#102A66
Darker −40%#09183A
More saturated +25%#135AFC
Less saturated −25%#4F72C0

Channel breakdown

R49
G102
B222
Red49 (19.2%)
Green102 (40%)
Blue222 (87.1%)
Hue221.62°
Saturation (HSL)72.38%
Lightness53.14%
Dominant channelBlue
Hex per channelR 31 · G 66 · B DE

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Every value on this page was computed from “3166de” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.