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Colour

#3A9BFB

  • #3A9BFB
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3A9BFB is a blue with RGB values 58, 155, 251 and HSL 210°, 96%, 61%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3A9BFB#3A9BFB
HEX#3A9BFB
RGBrgb(58, 155, 251)
RGB (0–1)0.2275, 0.6078, 0.9843
RGB percentages22.7%, 60.8%, 98.4%
HSLhsl(209.8, 96%, 60.6%)
HSV / HSBhsv(209.8, 76.9%, 98.4%)
CMYK76.9%, 38.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,841,019
CSS custom property--colour: #3A9BFB;

Brightness & contrast

Relative luminance0.31307WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.26:1
Contrast with white2.89:1WCAG normal text: Fail
Contrast with black7.26:1WCAG normal text: AAA
Greyscale equivalent#8D8D8D
Inverted#C56404

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6DA1FFno red cones; affects about 1% of men; ΔE 7.8 from the original
Deuteranopia#4F90F9no green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#00B2BFno blue cones; rare, and affects men and women equally; ΔE 53.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.89:1WCAG large text: Fail
Contrast with black, large text7.26:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.3Dodgerblue · ΔE 10.1Steel blue · ΔE 27Deep skyblue · ΔE 27.4Royal blue · ΔE 28.3Medium purple · ΔE 34
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.29, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FB9A3A
Analogous#3AFBFB, #3A3AFB
Triadic#FB3A9B, #9BFB3A
Split complementary#FB3A3A, #FBFA3A
Tetradic#FB3AFB, #FB9A3A, #3BFB3A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D0E7FE
Lighter +20%#9ECEFD
Lighter +10%#6CB4FC
Darker −10%#0882FA
Darker −20%#0468CB
Darker −30%#034E99
Darker −40%#023567
More saturated +25%#369BFF
Less saturated −25%#539BE2

Channel breakdown

R58
G155
B251
Red58 (22.7%)
Green155 (60.8%)
Blue251 (98.4%)
Hue209.84°
Saturation (HSL)96.02%
Lightness60.59%
Dominant channelBlue
Hex per channelR 3A · G 9B · B FB

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Every value on this page was computed from “3a9bfb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.