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Recognised as Colour

#0066FA

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

#0066FA is a blue with RGB values 0, 102, 250 and HSL 216°, 100%, 49%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0066FA#0066FA
HEX#0066FA
RGBrgb(0, 102, 250)
RGB (0–1)0, 0.4, 0.9804
RGB percentages0%, 40%, 98%
HSLhsl(215.5, 100%, 49%)
HSV / HSBhsv(215.5, 100%, 98%)
CMYK100%, 59.2%, 0%, 2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer26,362
CSS custom property--colour: #0066FA;

Brightness & contrast

Relative luminance0.16405WCAG 2.x, 0 is black and 1 is white
Perceived brightness115 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.91:1
Contrast with white4.91:1WCAG normal text: AA
Contrast with black4.28:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#FF9905

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#007BFFno red cones; affects about 1% of men; ΔE 14.5 from the original
Deuteranopia#0067F7no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#008DA6no blue cones; rare, and affects men and women equally; ΔE 80.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.91:1WCAG large text: AAA
Contrast with black, large text4.28:1WCAG large text: AA

Named colours

Royal blue · ΔE 16.2Medium slateblue · ΔE 17.1Slate blue · ΔE 22.4Medium purple · ΔE 30.9Dodgerblue · ΔE 31Rebecca purple · ΔE 37.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 16.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FA9400
Analogous#00E3FA, #1700FA
Triadic#FA0066, #66FA00
Split complementary#FA1700, #E3FA00
Tetradic#FA00E3, #FA9400, #00FA17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7DEFF
Lighter +30%#94C0FF
Lighter +20%#61A1FF
Lighter +10%#2E83FF
Darker −10%#0051C7
Darker −20%#003C94
Darker −30%#002861
Darker −40%#00132E
More saturated +25%#0066FA
Less saturated −25%#1F6CDB

Channel breakdown

R0
G102
B250
Red0 (0%)
Green102 (40%)
Blue250 (98%)
Hue215.52°
Saturation (HSL)100%
Lightness49.02%
Dominant channelBlue
Hex per channelR 00 · G 66 · B FA

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