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Colour

#003FC0

  • #003FC0
  • Blue
  • Dark
  • Nearest: Slate blue

#003FC0 is a blue with RGB values 0, 63, 192 and HSL 220°, 100%, 38%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#003FC0#003FC0
HEX#003FC0
RGBrgb(0, 63, 192)
RGB (0–1)0, 0.2471, 0.7529
RGB percentages0%, 24.7%, 75.3%
HSLhsl(220.3, 100%, 37.6%)
HSV / HSBhsv(220.3, 100%, 75.3%)
CMYK100%, 67.2%, 0%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,320
CSS custom property--colour: #003FC0;

Brightness & contrast

Relative luminance0.07361WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.49:1
Contrast with white8.49:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#FFC03F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0055C4no red cones; affects about 1% of men; ΔE 16.2 from the original
Deuteranopia#0044BEno green cones; the most common form, about 1% of men; ΔE 5.1 from the original
Tritanopia#00637Ano blue cones; rare, and affects men and women equally; ΔE 73.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.49:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Slate blue · ΔE 18.5Royal blue · ΔE 19.1Medium slateblue · ΔE 20.9Dark blue · ΔE 22.9Navy · ΔE 23.5Rebecca purple · ΔE 24.9
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 18.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C08100
Analogous#009FC0, #2100C0
Triadic#C0003F, #3FC000
Split complementary#C02100, #9FC000
Tetradic#C0009F, #C08100, #00C021

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8DB2FF
Lighter +30%#5A90FF
Lighter +20%#276EFF
Lighter +10%#0050F3
Darker −10%#002E8D
Darker −20%#001E5A
Darker −30%#000D27
Darker −40%#000000
More saturated +25%#003FC0
Less saturated −25%#1847A8

Channel breakdown

R0
G63
B192
Red0 (0%)
Green63 (24.7%)
Blue192 (75.3%)
Hue220.31°
Saturation (HSL)100%
Lightness37.65%
Dominant channelBlue
Hex per channelR 00 · G 3F · B C0

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Every value on this page was computed from “003fc0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.