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Recognised as Colour

#0305AB

  • #0305AB
  • Blue
  • Dark
  • Nearest: Dark blue

#0305AB is a blue with RGB values 3, 5, 171 and HSL 239°, 97%, 34%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0305AB#0305AB
HEX#0305AB
RGBrgb(3, 5, 171)
RGB (0–1)0.0118, 0.0196, 0.6706
RGB percentages1.2%, 2%, 67.1%
HSLhsl(239.3, 96.6%, 34.1%)
HSV / HSBhsv(239.3, 98.2%, 67.1%)
CMYK98.2%, 97.1%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer198,059
CSS custom property--colour: #0305AB;

Brightness & contrast

Relative luminance0.03068WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.01:1
Contrast with white13.01:1WCAG normal text: AAA
Contrast with black1.61:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#FCFA54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003AAFno red cones; affects about 1% of men; ΔE 29.3 from the original
Deuteranopia#0027A9no green cones; the most common form, about 1% of men; ΔE 17.5 from the original
Tritanopia#004663no blue cones; rare, and affects men and women equally; ΔE 86.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.01:1WCAG large text: AAA
Contrast with black, large text1.61:1WCAG large text: Fail

Named colours

Dark blue · ΔE 13.7Medium blue · ΔE 16.5Navy · ΔE 18.9Blue violet · ΔE 25.6Indigo · ΔE 26.4Dark violet · ΔE 28.4
Nearest named CSS colourDark blue (#00008B)ΔE 13.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ABA903
Analogous#0359AB, #5503AB
Triadic#AB0305, #05AB03
Split complementary#AB5503, #59AB03
Tetradic#AB0359, #ABA903, #03AB55

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7D7FFD
Lighter +30%#4B4DFC
Lighter +20%#191CFB
Lighter +10%#0406DD
Darker −10%#020479
Darker −20%#010247
Darker −30%#000115
Darker −40%#000000
More saturated +25%#0002AE
Less saturated −25%#191A95

Channel breakdown

R3
G5
B171
Red3 (1.2%)
Green5 (2%)
Blue171 (67.1%)
Hue239.29°
Saturation (HSL)96.55%
Lightness34.12%
Dominant channelBlue
Hex per channelR 03 · G 05 · B AB

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Every value on this page was computed from “0305ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.