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Colour

#247DFF

  • #247DFF
  • Blue
  • Dark
  • Nearest: Royal blue

#247DFF is a blue with RGB values 36, 125, 255 and HSL 216°, 100%, 57%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#247DFF#247DFF
HEX#247DFF
RGBrgb(36, 125, 255)
RGB (0–1)0.1412, 0.4902, 1
RGB percentages14.1%, 49%, 100%
HSLhsl(215.6, 100%, 57.1%)
HSV / HSBhsv(215.6, 85.9%, 100%)
CMYK85.9%, 51%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,391,551
CSS custom property--colour: #247DFF;

Brightness & contrast

Relative luminance0.22262WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.45:1
Contrast with white3.85:1WCAG normal text: Fail
Contrast with black5.45:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#DB8200

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F8CFFno red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#0079FCno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#009DB2no blue cones; rare, and affects men and women equally; ΔE 70.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.85:1WCAG large text: AA
Contrast with black, large text5.45:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10Dodgerblue · ΔE 15.4Medium slateblue · ΔE 20.2Slate blue · ΔE 21.6Medium purple · ΔE 26.1Cornflower blue · ΔE 26.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFA624
Analogous#24EAFF, #3924FF
Triadic#FF247D, #7DFF24
Split complementary#FF3924, #EBFF24
Tetradic#FF24EA, #FFA624, #24FF39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F0F6FF
Lighter +30%#BDD8FF
Lighter +20%#8ABAFF
Lighter +10%#579BFF
Darker −10%#0062F0
Darker −20%#004DBD
Darker −30%#00388A
Darker −40%#002357
More saturated +25%#247DFF
Less saturated −25%#3F82E4

Channel breakdown

R36
G125
B255
Red36 (14.1%)
Green125 (49%)
Blue255 (100%)
Hue215.62°
Saturation (HSL)100%
Lightness57.06%
Dominant channelBlue
Hex per channelR 24 · G 7D · B FF

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Every value on this page was computed from “247dff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.