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Colour

#1F70FF

  • #1F70FF
  • Blue
  • Dark
  • Nearest: Royal blue

#1F70FF is a blue with RGB values 31, 112, 255 and HSL 218°, 100%, 56%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1F70FF#1F70FF
HEX#1F70FF
RGBrgb(31, 112, 255)
RGB (0–1)0.1216, 0.4392, 1
RGB percentages12.2%, 43.9%, 100%
HSLhsl(218.3, 100%, 56.1%)
HSV / HSBhsv(218.3, 87.8%, 100%)
CMYK87.8%, 56.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,060,543
CSS custom property--colour: #1F70FF;

Brightness & contrast

Relative luminance0.191WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.82:1
Contrast with white4.36:1WCAG normal text: Fail
Contrast with black4.82:1WCAG normal text: AA
Greyscale equivalent#696969
Inverted#E08F00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0083FFno red cones; affects about 1% of men; ΔE 15.8 from the original
Deuteranopia#006FFCno green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#0094ADno blue cones; rare, and affects men and women equally; ΔE 76.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.36:1WCAG large text: AA
Contrast with black, large text4.82:1WCAG large text: AAA

Named colours

Royal blue · ΔE 12.9Medium slateblue · ΔE 16.4Slate blue · ΔE 21.2Dodgerblue · ΔE 25.7Medium purple · ΔE 28.4Cornflower blue · ΔE 36.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFAE1F
Analogous#1FE0FF, #3E1FFF
Triadic#FF1F70, #70FF1F
Split complementary#FF3E1F, #E0FF1F
Tetradic#FF1FE0, #FFAE1F, #1FFF3E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF2FF
Lighter +30%#B8D2FF
Lighter +20%#85B1FF
Lighter +10%#5291FF
Darker −10%#0055EB
Darker −20%#0043B8
Darker −30%#003085
Darker −40%#001E52
More saturated +25%#1F70FF
Less saturated −25%#3B78E3

Channel breakdown

R31
G112
B255
Red31 (12.2%)
Green112 (43.9%)
Blue255 (100%)
Hue218.3°
Saturation (HSL)100%
Lightness56.08%
Dominant channelBlue
Hex per channelR 1F · G 70 · B FF

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Every value on this page was computed from “1f70ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.