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Recognised as Colour

#4059AB

  • #4059AB
  • Blue
  • Dark
  • Nearest: Dark slateblue

#4059AB is a blue with RGB values 64, 89, 171 and HSL 226°, 46%, 46%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#4059AB#4059AB
HEX#4059AB
RGBrgb(64, 89, 171)
RGB (0–1)0.251, 0.349, 0.6706
RGB percentages25.1%, 34.9%, 67.1%
HSLhsl(226, 45.5%, 46.1%)
HSV / HSBhsv(226, 62.6%, 67.1%)
CMYK62.6%, 48%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,217,259
CSS custom property--colour: #4059AB;

Brightness & contrast

Relative luminance0.11175WCAG 2.x, 0 is black and 1 is white
Perceived brightness96 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.49:1
Contrast with white6.49:1WCAG normal text: AA
Contrast with black3.24:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#BFA654

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3063AEno red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#1D59A9no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#006C7Ano blue cones; rare, and affects men and women equally; ΔE 49.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.49:1WCAG large text: AAA
Contrast with black, large text3.24:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 13.7Royal blue · ΔE 22Slate blue · ΔE 22.6Cornflower blue · ΔE 23.5Medium purple · ΔE 25.1Dodgerblue · ΔE 26.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.66, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB9240
Analogous#408EAB, #5D40AB
Triadic#AB4059, #59AB40
Split complementary#AB5D40, #8EAB40
Tetradic#AB408E, #AB9240, #40AB5D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBD3EC
Lighter +30%#A6B3DE
Lighter +20%#8194D0
Lighter +10%#5C74C2
Darker −10%#324686
Darker −20%#243261
Darker −30%#161F3C
Darker −40%#080C17
More saturated +25%#2349C8
Less saturated −25%#5D698E

Channel breakdown

R64
G89
B171
Red64 (25.1%)
Green89 (34.9%)
Blue171 (67.1%)
Hue225.98°
Saturation (HSL)45.53%
Lightness46.08%
Dominant channelBlue
Hex per channelR 40 · G 59 · B AB

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Every value on this page was computed from “4059ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.