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Recognised as Colour

#0359AB

  • #0359AB
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0359AB is a blue with RGB values 3, 89, 171 and HSL 209°, 97%, 34%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0359AB#0359AB
HEX#0359AB
RGBrgb(3, 89, 171)
RGB (0–1)0.0118, 0.349, 0.6706
RGB percentages1.2%, 34.9%, 67.1%
HSLhsl(209.3, 96.6%, 34.1%)
HSV / HSBhsv(209.3, 98.2%, 67.1%)
CMYK98.2%, 48%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer219,563
CSS custom property--colour: #0359AB;

Brightness & contrast

Relative luminance0.10104WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.95:1
Contrast with white6.95:1WCAG normal text: AA
Contrast with black3.02:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#FCA654

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2961AEno red cones; affects about 1% of men; ΔE 5 from the original
Deuteranopia#0053A9no green cones; the most common form, about 1% of men; ΔE 4.1 from the original
Tritanopia#006D79no blue cones; rare, and affects men and women equally; ΔE 48.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.95:1WCAG large text: AAA
Contrast with black, large text3.02:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 18.9Cornflower blue · ΔE 23.9Royal blue · ΔE 24.1Dodgerblue · ΔE 25.2Steel blue · ΔE 27.1Slate blue · ΔE 27.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.88, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB5503
Analogous#03ABA9, #0305AB
Triadic#AB0359, #59AB03
Split complementary#AB0305, #ABA903
Tetradic#A903AB, #AB5503, #05AB03

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7DBFFD
Lighter +30%#4BA6FC
Lighter +20%#198DFB
Lighter +10%#0473DD
Darker −10%#023F79
Darker −20%#012547
Darker −30%#000B15
Darker −40%#000000
More saturated +25%#0059AE
Less saturated −25%#195895

Channel breakdown

R3
G89
B171
Red3 (1.2%)
Green89 (34.9%)
Blue171 (67.1%)
Hue209.29°
Saturation (HSL)96.55%
Lightness34.12%
Dominant channelBlue
Hex per channelR 03 · G 59 · B AB

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Every value on this page was computed from “0359ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.