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Colour

#003DBF

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

#003DBF is a blue with RGB values 0, 61, 191 and HSL 221°, 100%, 37%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#003DBF#003DBF
HEX#003DBF
RGBrgb(0, 61, 191)
RGB (0–1)0, 0.2392, 0.749
RGB percentages0%, 23.9%, 74.9%
HSLhsl(220.8, 100%, 37.5%)
HSV / HSBhsv(220.8, 100%, 74.9%)
CMYK100%, 68.1%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,807
CSS custom property--colour: #003DBF;

Brightness & contrast

Relative luminance0.07099WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.68:1
Contrast with white8.68:1WCAG normal text: AAA
Contrast with black2.42:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#FFC240

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054C3no red cones; affects about 1% of men; ΔE 17 from the original
Deuteranopia#0043BDno green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#006179no 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 text8.68:1WCAG large text: AAA
Contrast with black, large text2.42:1WCAG large text: Fail

Named colours

Slate blue · ΔE 19.2Royal blue · ΔE 20.2Medium slateblue · ΔE 21.4Dark blue · ΔE 22Navy · ΔE 22.7Rebecca purple · ΔE 25.1
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 19.2, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF8200
Analogous#009CBF, #2300BF
Triadic#BF003D, #3DBF00
Split complementary#BF2200, #9DBF00
Tetradic#BF009C, #BF8200, #00BF23

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8CB1FF
Lighter +30%#598EFF
Lighter +20%#266BFF
Lighter +10%#004DF2
Darker −10%#002D8C
Darker −20%#001C59
Darker −30%#000C26
Darker −40%#000000
More saturated +25%#003DBF
Less saturated −25%#1846A7

Channel breakdown

R0
G61
B191
Red0 (0%)
Green61 (23.9%)
Blue191 (74.9%)
Hue220.84°
Saturation (HSL)100%
Lightness37.45%
Dominant channelBlue
Hex per channelR 00 · G 3D · B BF

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