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Colour

#1F87FA

  • #1F87FA
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F87FA is a blue with RGB values 31, 135, 250 and HSL 212°, 96%, 55%. 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

#1F87FA#1F87FA
HEX#1F87FA
RGBrgb(31, 135, 250)
RGB (0–1)0.1216, 0.5294, 0.9804
RGB percentages12.2%, 52.9%, 98%
HSLhsl(211.5, 95.6%, 55.1%)
HSV / HSBhsv(211.5, 87.6%, 98%)
CMYK87.6%, 46%, 0%, 2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,066,426
CSS custom property--colour: #1F87FA;

Brightness & contrast

Relative luminance0.24521WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.9:1
Contrast with white3.56:1WCAG normal text: Fail
Contrast with black5.9:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#E07805

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4692FEno red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#007FF8no green cones; the most common form, about 1% of men; ΔE 5.1 from the original
Tritanopia#00A3B4no blue cones; rare, and affects men and women equally; ΔE 63 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.56:1WCAG large text: AA
Contrast with black, large text5.9:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 4.9Royal blue · ΔE 15.4Cornflower blue · ΔE 17.2Slate blue · ΔE 26.1Medium purple · ΔE 27.7Medium slateblue · ΔE 27.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 4.9, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FA921F
Analogous#1FF4FA, #251FFA
Triadic#FA1F87, #87FA1F
Split complementary#FA251F, #F4FA1F
Tetradic#FA1FF4, #FA921F, #1FFA25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7F2FE
Lighter +30%#B5D7FD
Lighter +20%#83BCFC
Lighter +10%#51A2FB
Darker −10%#056DE1
Darker −20%#0455AF
Darker −30%#033D7D
Darker −40%#02254B
More saturated +25%#1A87FF
Less saturated −25%#3C88DD

Channel breakdown

R31
G135
B250
Red31 (12.2%)
Green135 (52.9%)
Blue250 (98%)
Hue211.51°
Saturation (HSL)95.63%
Lightness55.1%
Dominant channelBlue
Hex per channelR 1F · G 87 · B FA

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Every value on this page was computed from “1f87fa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.