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Recognised as Colour

#3159FF

  • #3159FF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3159FF is a blue with RGB values 49, 89, 255 and HSL 228°, 100%, 60%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3159FF#3159FF
HEX#3159FF
RGBrgb(49, 89, 255)
RGB (0–1)0.1922, 0.349, 1
RGB percentages19.2%, 34.9%, 100%
HSLhsl(228.3, 100%, 59.6%)
HSV / HSBhsv(228.3, 80.8%, 100%)
CMYK80.8%, 65.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,234,303
CSS custom property--colour: #3159FF;

Brightness & contrast

Relative luminance0.15018WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.25:1
Contrast with white5.25:1WCAG normal text: AA
Contrast with black4:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#CEA600

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0076FFno red cones; affects about 1% of men; ΔE 23.6 from the original
Deuteranopia#0062FCno green cones; the most common form, about 1% of men; ΔE 9.4 from the original
Tritanopia#0086A4no blue cones; rare, and affects men and women equally; ΔE 89.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.25:1WCAG large text: AAA
Contrast with black, large text4:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 21.7Blue violet · ΔE 27.1Royal blue · ΔE 28Slate blue · ΔE 29.4Medium blue · ΔE 30.7Dark orchid · ΔE 32.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 21.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFD731
Analogous#31C0FF, #7031FF
Triadic#FF3159, #59FF31
Split complementary#FF7031, #C0FF31
Tetradic#FF31C0, #FFD731, #31FF70

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFDFF
Lighter +30%#CAD4FF
Lighter +20%#97ABFF
Lighter +10%#6482FF
Darker −10%#0031FD
Darker −20%#0027CA
Darker −30%#001D97
Darker −40%#001364
More saturated +25%#3159FF
Less saturated −25%#4B69E5

Channel breakdown

R49
G89
B255
Red49 (19.2%)
Green89 (34.9%)
Blue255 (100%)
Hue228.35°
Saturation (HSL)100%
Lightness59.61%
Dominant channelBlue
Hex per channelR 31 · G 59 · B FF

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Every value on this page was computed from “3159ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.