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Recognised as Colour

#3F58EE

  • #3F58EE
  • Blue
  • Dark
  • Nearest: Medium slateblue

#3F58EE is a blue with RGB values 63, 88, 238 and HSL 231°, 84%, 59%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#3F58EE#3F58EE
HEX#3F58EE
RGBrgb(63, 88, 238)
RGB (0–1)0.2471, 0.3451, 0.9333
RGB percentages24.7%, 34.5%, 93.3%
HSLhsl(231.4, 83.7%, 59%)
HSV / HSBhsv(231.4, 73.5%, 93.3%)
CMYK73.5%, 63%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,151,534
CSS custom property--colour: #3F58EE;

Brightness & contrast

Relative luminance0.14209WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.47:1
Contrast with white5.47:1WCAG normal text: AA
Contrast with black3.84:1WCAG normal text: Fail
Greyscale equivalent#5E5E5E
Inverted#C0A711

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0072F3no red cones; affects about 1% of men; ΔE 20.1 from the original
Deuteranopia#0061EBno green cones; the most common form, about 1% of men; ΔE 10.7 from the original
Tritanopia#007F9Bno blue cones; rare, and affects men and women equally; ΔE 81.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.47:1WCAG large text: AAA
Contrast with black, large text3.84:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 14.7Royal blue · ΔE 19.9Slate blue · ΔE 20.9Blue violet · ΔE 28.9Dark orchid · ΔE 29.9Medium purple · ΔE 30.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 14.72, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EED53F
Analogous#3FB0EE, #7E3FEE
Triadic#EE3F58, #58EE3F
Split complementary#EE7E3F, #AFEE3F
Tetradic#EE3FAF, #EED53F, #3FEE7E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FAFBFF
Lighter +30%#CCD2FA
Lighter +20%#9DAAF6
Lighter +10%#6E81F2
Darker −10%#1432E6
Darker −20%#1028B7
Darker −30%#0C1E88
Darker −40%#081359
More saturated +25%#2E4CFF
Less saturated −25%#596BD4

Channel breakdown

R63
G88
B238
Red63 (24.7%)
Green88 (34.5%)
Blue238 (93.3%)
Hue231.43°
Saturation (HSL)83.73%
Lightness59.02%
Dominant channelBlue
Hex per channelR 3F · G 58 · B EE

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Every value on this page was computed from “3f58ee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.