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Colour

#0039CB

  • #0039CB
  • Blue
  • Dark
  • Nearest: Dark blue

#0039CB is a blue with RGB values 0, 57, 203 and HSL 223°, 100%, 40%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0039CB#0039CB
HEX#0039CB
RGBrgb(0, 57, 203)
RGB (0–1)0, 0.2235, 0.7961
RGB percentages0%, 22.4%, 79.6%
HSLhsl(223.2, 100%, 39.8%)
HSV / HSBhsv(223.2, 100%, 79.6%)
CMYK100%, 71.9%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,795
CSS custom property--colour: #0039CB;

Brightness & contrast

Relative luminance0.07238WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.58:1
Contrast with white8.58:1WCAG normal text: AAA
Contrast with black2.45:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#FFC634

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0055CFno red cones; affects about 1% of men; ΔE 20.4 from the original
Deuteranopia#0043C8no green cones; the most common form, about 1% of men; ΔE 9.2 from the original
Tritanopia#00647Eno blue cones; rare, and affects men and women equally; ΔE 81.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.58:1WCAG large text: AAA
Contrast with black, large text2.45:1WCAG large text: Fail

Named colours

Dark blue · ΔE 20.9Medium slateblue · ΔE 23.7Navy · ΔE 23.8Slate blue · ΔE 25.4Royal blue · ΔE 26.9Medium blue · ΔE 27.7
Nearest named CSS colourDark blue (#00008B)ΔE 20.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB9200
Analogous#009FCB, #2C00CB
Triadic#CB0039, #39CB00
Split complementary#CB2C00, #9FCB00
Tetradic#CB009F, #CB9200, #00CB2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#98B5FF
Lighter +30%#6590FF
Lighter +20%#326CFF
Lighter +10%#0047FE
Darker −10%#002B98
Darker −20%#001C65
Darker −30%#000E32
Darker −40%#000000
More saturated +25%#0039CB
Less saturated −25%#1944B2

Channel breakdown

R0
G57
B203
Red0 (0%)
Green57 (22.4%)
Blue203 (79.6%)
Hue223.15°
Saturation (HSL)100%
Lightness39.8%
Dominant channelBlue
Hex per channelR 00 · G 39 · B CB

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Every value on this page was computed from “0039cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.