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Recognised as Colour

#4A39BB

  • #4A39BB
  • Blue
  • Dark
  • Nearest: Slate blue

#4A39BB is a blue with RGB values 74, 57, 187 and HSL 248°, 53%, 48%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#4A39BB#4A39BB
HEX#4A39BB
RGBrgb(74, 57, 187)
RGB (0–1)0.2902, 0.2235, 0.7333
RGB percentages29%, 22.4%, 73.3%
HSLhsl(247.8, 53.3%, 47.8%)
HSV / HSBhsv(247.8, 69.5%, 73.3%)
CMYK60.4%, 69.5%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,864,443
CSS custom property--colour: #4A39BB;

Brightness & contrast

Relative luminance0.0797WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.1:1
Contrast with white8.1:1WCAG normal text: AAA
Contrast with black2.59:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#B5C644

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054BFno red cones; affects about 1% of men; ΔE 23 from the original
Deuteranopia#004BB9no green cones; the most common form, about 1% of men; ΔE 18.9 from the original
Tritanopia#005C76no blue cones; rare, and affects men and women equally; ΔE 72.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.1:1WCAG large text: AAA
Contrast with black, large text2.59:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.2Medium slateblue · ΔE 18.5Rebecca purple · ΔE 18.9Indigo · ΔE 20Dark blue · ΔE 20.4Navy · ΔE 21.3
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AABB39
Analogous#3969BB, #8B39BB
Triadic#BB4A39, #39BB4A
Split complementary#BB8B39, #69BB39
Tetradic#BB3969, #AABB39, #39BB8B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D4CFF1
Lighter +30%#B0A8E5
Lighter +20%#8D81D9
Lighter +10%#695ACD
Darker −10%#3B2D94
Darker −20%#2B216D
Darker −30%#1C1546
Darker −40%#0C091F
More saturated +25%#331AD9
Less saturated −25%#61579C

Channel breakdown

R74
G57
B187
Red74 (29%)
Green57 (22.4%)
Blue187 (73.3%)
Hue247.85°
Saturation (HSL)53.28%
Lightness47.84%
Dominant channelBlue
Hex per channelR 4A · G 39 · B BB

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Every value on this page was computed from “4a39bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.