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Recognised as Colour

#1F8DFC

  • #1F8DFC
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F8DFC is a blue with RGB values 31, 141, 252 and HSL 210°, 97%, 55%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1F8DFC#1F8DFC
HEX#1F8DFC
RGBrgb(31, 141, 252)
RGB (0–1)0.1216, 0.5529, 0.9882
RGB percentages12.2%, 55.3%, 98.8%
HSLhsl(210.1, 97.4%, 55.5%)
HSV / HSBhsv(210.1, 87.7%, 98.8%)
CMYK87.7%, 44%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,067,964
CSS custom property--colour: #1F8DFC;

Brightness & contrast

Relative luminance0.26369WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.27:1
Contrast with white3.35:1WCAG normal text: Fail
Contrast with black6.27:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#E07203

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5197FFno red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#1D84FAno green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#00A8B8no blue cones; rare, and affects men and women equally; ΔE 60.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.35:1WCAG large text: AA
Contrast with black, large text6.27:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 1.2Cornflower blue · ΔE 14.5Royal blue · ΔE 18.9Slate blue · ΔE 29Medium purple · ΔE 29.5Medium slateblue · ΔE 31.1
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 1.24, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FC8E1F
Analogous#1FFCFC, #1F1FFC
Triadic#FC1F8D, #8DFC1F
Split complementary#FC1F1F, #FCFC1F
Tetradic#FC1FFC, #FC8E1F, #1FFC1F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E8F3FF
Lighter +30%#B6DAFE
Lighter +20%#84C0FD
Lighter +10%#51A7FD
Darker −10%#0373E5
Darker −20%#025AB3
Darker −30%#024180
Darker −40%#01274E
More saturated +25%#1C8DFF
Less saturated −25%#3B8DE0

Channel breakdown

R31
G141
B252
Red31 (12.2%)
Green141 (55.3%)
Blue252 (98.8%)
Hue210.14°
Saturation (HSL)97.36%
Lightness55.49%
Dominant channelBlue
Hex per channelR 1F · G 8D · B FC

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Every value on this page was computed from “1f8dfc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.