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Colour

#0139AC

  • #0139AC
  • Blue
  • Dark
  • Nearest: Slate blue

#0139AC is a blue with RGB values 1, 57, 172 and HSL 220°, 99%, 34%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#0139AC#0139AC
HEX#0139AC
RGBrgb(1, 57, 172)
RGB (0–1)0.0039, 0.2235, 0.6745
RGB percentages0.4%, 22.4%, 67.5%
HSLhsl(220.4, 98.8%, 33.9%)
HSV / HSBhsv(220.4, 99.4%, 67.5%)
CMYK99.4%, 66.9%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer80,300
CSS custom property--colour: #0139AC;

Brightness & contrast

Relative luminance0.05911WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.62:1
Contrast with white9.62:1WCAG normal text: AAA
Contrast with black2.18:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FEC653

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004CB0no red cones; affects about 1% of men; ΔE 14.1 from the original
Deuteranopia#003DAAno green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#00596Dno blue cones; rare, and affects men and women equally; ΔE 67 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.62:1WCAG large text: AAA
Contrast with black, large text2.18:1WCAG large text: Fail

Named colours

Slate blue · ΔE 18Royal blue · ΔE 19.6Midnight blue · ΔE 20.4Rebecca purple · ΔE 21Navy · ΔE 22.1Dark blue · ΔE 23.3
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 18.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AC7401
Analogous#018FAC, #1F01AC
Triadic#AC0139, #39AC01
Split complementary#AC1F01, #8EAC01
Tetradic#AC018E, #AC7401, #01AC1F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7BA6FE
Lighter +30%#4884FE
Lighter +20%#1561FE
Lighter +10%#014ADF
Darker −10%#012879
Darker −20%#001747
Darker −30%#000714
Darker −40%#000000
More saturated +25%#0039AD
Less saturated −25%#174096

Channel breakdown

R1
G57
B172
Red1 (0.4%)
Green57 (22.4%)
Blue172 (67.5%)
Hue220.35°
Saturation (HSL)98.84%
Lightness33.92%
Dominant channelBlue
Hex per channelR 01 · G 39 · B AC

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Every value on this page was computed from “0139ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.