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Colour

#3A3559

  • #3A3559
  • Blue
  • Dark
  • Nearest: Dark slateblue

#3A3559 is a blue with RGB values 58, 53, 89 and HSL 248°, 25%, 28%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#3A3559#3A3559
HEX#3A3559
RGBrgb(58, 53, 89)
RGB (0–1)0.2275, 0.2078, 0.349
RGB percentages22.7%, 20.8%, 34.9%
HSLhsl(248.3, 25.4%, 27.8%)
HSV / HSBhsv(248.3, 40.4%, 34.9%)
CMYK34.8%, 40.4%, 0%, 65.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,814,745
CSS custom property--colour: #3A3559;

Brightness & contrast

Relative luminance0.04167WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.45:1
Contrast with white11.45:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#C5CAA6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2A3A5Ano red cones; affects about 1% of men; ΔE 8 from the original
Deuteranopia#2A3958no green cones; the most common form, about 1% of men; ΔE 8 from the original
Tritanopia#333C42no blue cones; rare, and affects men and women equally; ΔE 21.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.45:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 26.4Dark slate grey · ΔE 29.9Dim grey · ΔE 31.3Slate grey · ΔE 33.4Black · ΔE 34.1Steel blue · ΔE 34.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 26.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#545935
Analogous#354259, #4C3559
Triadic#593A35, #35593A
Split complementary#594C35, #425935
Tetradic#593542, #545935, #35594C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9E98C2
Lighter +30%#8078AF
Lighter +20%#645B99
Lighter +10%#4F4879
Darker −10%#252239
Darker −20%#100F19
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2D236B
Less saturated −25%#474747

Channel breakdown

R58
G53
B89
Red58 (22.7%)
Green53 (20.8%)
Blue89 (34.9%)
Hue248.33°
Saturation (HSL)25.35%
Lightness27.84%
Dominant channelBlue
Hex per channelR 3A · G 35 · B 59

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Every value on this page was computed from “3a3559” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.