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Recognised as Colour

#003FD6

  • #003FD6
  • Blue
  • Dark
  • Nearest: Medium slateblue

#003FD6 is a blue with RGB values 0, 63, 214 and HSL 222°, 100%, 42%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Medium slateblue.

Colour values

#003FD6#003FD6
HEX#003FD6
RGBrgb(0, 63, 214)
RGB (0–1)0, 0.2471, 0.8392
RGB percentages0%, 24.7%, 83.9%
HSLhsl(222.3, 100%, 42%)
HSV / HSBhsv(222.3, 100%, 83.9%)
CMYK100%, 70.6%, 0%, 16.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,342
CSS custom property--colour: #003FD6;

Brightness & contrast

Relative luminance0.0841WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.83:1
Contrast with white7.83:1WCAG normal text: AAA
Contrast with black2.68:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#FFC029

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005BDBno red cones; affects about 1% of men; ΔE 19.9 from the original
Deuteranopia#0048D3no green cones; the most common form, about 1% of men; ΔE 8.4 from the original
Tritanopia#006A86no blue cones; rare, and affects men and women equally; ΔE 83.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.83:1WCAG large text: AAA
Contrast with black, large text2.68:1WCAG large text: Fail

Named colours

Medium slateblue · ΔE 23.1Dark blue · ΔE 24Slate blue · ΔE 26.3Royal blue · ΔE 27Blue violet · ΔE 27Navy · ΔE 27
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 23.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D69700
Analogous#00AAD6, #2C00D6
Triadic#D6003F, #3FD600
Split complementary#D62C00, #AAD600
Tetradic#D600AA, #D69700, #00D62C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3BEFF
Lighter +30%#709AFF
Lighter +20%#3D76FF
Lighter +10%#0A52FF
Darker −10%#0030A3
Darker −20%#002170
Darker −30%#00123D
Darker −40%#00030A
More saturated +25%#003FD6
Less saturated −25%#1B4ABB

Channel breakdown

R0
G63
B214
Red0 (0%)
Green63 (24.7%)
Blue214 (83.9%)
Hue222.34°
Saturation (HSL)100%
Lightness41.96%
Dominant channelBlue
Hex per channelR 00 · G 3F · B D6

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Every value on this page was computed from “003fd6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.