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Recognised as Colour

#1F85FF

  • #1F85FF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F85FF is a blue with RGB values 31, 133, 255 and HSL 213°, 100%, 56%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1F85FF#1F85FF
HEX#1F85FF
RGBrgb(31, 133, 255)
RGB (0–1)0.1216, 0.5216, 1
RGB percentages12.2%, 52.2%, 100%
HSLhsl(212.7, 100%, 56.1%)
HSV / HSBhsv(212.7, 87.8%, 100%)
CMYK87.8%, 47.8%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,065,919
CSS custom property--colour: #1F85FF;

Brightness & contrast

Relative luminance0.24286WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.86:1
Contrast with white3.59:1WCAG normal text: Fail
Contrast with black5.86:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#E07A00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3B91FFno red cones; affects about 1% of men; ΔE 8.9 from the original
Deuteranopia#007EFDno green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#00A3B6no blue cones; rare, and affects men and women equally; ΔE 66.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.59:1WCAG large text: AA
Contrast with black, large text5.86:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 8.9Royal blue · ΔE 13.1Cornflower blue · ΔE 21.1Slate blue · ΔE 24.6Medium slateblue · ΔE 24.9Medium purple · ΔE 27.1
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 8.85, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF991F
Analogous#1FF5FF, #291FFF
Triadic#FF1F85, #85FF1F
Split complementary#FF291F, #F5FF1F
Tetradic#FF1FF5, #FF991F, #1FFF29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF4FF
Lighter +30%#B8D8FF
Lighter +20%#85BDFF
Lighter +10%#52A1FF
Darker −10%#006BEB
Darker −20%#0054B8
Darker −30%#003D85
Darker −40%#002552
More saturated +25%#1F85FF
Less saturated −25%#3B87E3

Channel breakdown

R31
G133
B255
Red31 (12.2%)
Green133 (52.2%)
Blue255 (100%)
Hue212.68°
Saturation (HSL)100%
Lightness56.08%
Dominant channelBlue
Hex per channelR 1F · G 85 · B FF

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Every value on this page was computed from “1f85ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.