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Colour

#0066EB

  • #0066EB
  • Blue
  • Dark
  • Nearest: Royal blue

#0066EB is a blue with RGB values 0, 102, 235 and HSL 214°, 100%, 46%. 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

#0066EB#0066EB
HEX#0066EB
RGBrgb(0, 102, 235)
RGB (0–1)0, 0.4, 0.9216
RGB percentages0%, 40%, 92.2%
HSLhsl(214, 100%, 46.1%)
HSV / HSBhsv(214, 100%, 92.2%)
CMYK100%, 56.6%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer26,347
CSS custom property--colour: #0066EB;

Brightness & contrast

Relative luminance0.15501WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.12:1
Contrast with white5.12:1WCAG normal text: AA
Contrast with black4.1:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#FF9914

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0078F0no red cones; affects about 1% of men; ΔE 12.3 from the original
Deuteranopia#0064E8no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#00889Fno blue cones; rare, and affects men and women equally; ΔE 72.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.12:1WCAG large text: AAA
Contrast with black, large text4.1:1WCAG large text: AA

Named colours

Royal blue · ΔE 8.4Medium slateblue · ΔE 16.8Slate blue · ΔE 17.9Dodgerblue · ΔE 24.1Medium purple · ΔE 26.6Rebecca purple · ΔE 33.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.41, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EB8500
Analogous#00DBEB, #1000EB
Triadic#EB0066, #66EB00
Split complementary#EB1000, #DBEB00
Tetradic#EB00DB, #EB8500, #00EB10

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8D7FF
Lighter +30%#85BAFF
Lighter +20%#529DFF
Lighter +10%#1F80FF
Darker −10%#0050B8
Darker −20%#003A85
Darker −30%#002452
Darker −40%#000D1F
More saturated +25%#0066EB
Less saturated −25%#1D6ACE

Channel breakdown

R0
G102
B235
Red0 (0%)
Green102 (40%)
Blue235 (92.2%)
Hue213.96°
Saturation (HSL)100%
Lightness46.08%
Dominant channelBlue
Hex per channelR 00 · G 66 · B EB

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Every value on this page was computed from “0066eb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.