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Colour

#1F89FF

  • #1F89FF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1F89FF is a blue with RGB values 31, 137, 255 and HSL 212°, 100%, 56%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1F89FF#1F89FF
HEX#1F89FF
RGBrgb(31, 137, 255)
RGB (0–1)0.1216, 0.5373, 1
RGB percentages12.2%, 53.7%, 100%
HSLhsl(211.6, 100%, 56.1%)
HSV / HSBhsv(211.6, 87.8%, 100%)
CMYK87.8%, 46.3%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,066,943
CSS custom property--colour: #1F89FF;

Brightness & contrast

Relative luminance0.25403WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.08:1
Contrast with white3.45:1WCAG normal text: Fail
Contrast with black6.08:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#E07600

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4694FFno red cones; affects about 1% of men; ΔE 8.1 from the original
Deuteranopia#0081FDno green cones; the most common form, about 1% of men; ΔE 5.1 from the original
Tritanopia#00A6B8no blue cones; rare, and affects men and women equally; ΔE 64.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.45:1WCAG large text: AA
Contrast with black, large text6.08:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5.6Royal blue · ΔE 15.4Cornflower blue · ΔE 18.4Slate blue · ΔE 26.4Medium slateblue · ΔE 27.3Medium purple · ΔE 28
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 5.63, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF951F
Analogous#1FF9FF, #251FFF
Triadic#FF1F89, #89FF1F
Split complementary#FF251F, #F9FF1F
Tetradic#FF1FF9, #FF951F, #1FFF25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBF4FF
Lighter +30%#B8DAFF
Lighter +20%#85BFFF
Lighter +10%#52A4FF
Darker −10%#006FEB
Darker −20%#0057B8
Darker −30%#003F85
Darker −40%#002752
More saturated +25%#1F89FF
Less saturated −25%#3B8AE3

Channel breakdown

R31
G137
B255
Red31 (12.2%)
Green137 (53.7%)
Blue255 (100%)
Hue211.61°
Saturation (HSL)100%
Lightness56.08%
Dominant channelBlue
Hex per channelR 1F · G 89 · B FF

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Every value on this page was computed from “1f89ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.