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Colour

#3389FD

  • #3389FD
  • Blue
  • Dark
  • Nearest: Dodgerblue

#3389FD is a blue with RGB values 51, 137, 253 and HSL 214°, 98%, 60%. 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

#3389FD#3389FD
HEX#3389FD
RGBrgb(51, 137, 253)
RGB (0–1)0.2, 0.5373, 0.9922
RGB percentages20%, 53.7%, 99.2%
HSLhsl(214.5, 98.1%, 59.6%)
HSV / HSBhsv(214.5, 79.8%, 99.2%)
CMYK79.8%, 45.8%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,377,661
CSS custom property--colour: #3389FD;

Brightness & contrast

Relative luminance0.25687WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.14:1
Contrast with white3.42:1WCAG normal text: Fail
Contrast with black6.14:1WCAG normal text: AA
Greyscale equivalent#7F7F7F
Inverted#CC7602

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4994FFno red cones; affects about 1% of men; ΔE 7.1 from the original
Deuteranopia#0C82FBno green cones; the most common form, about 1% of men; ΔE 4.4 from the original
Tritanopia#00A5B7no blue cones; rare, and affects men and women equally; ΔE 63.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.42:1WCAG large text: AA
Contrast with black, large text6.14:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5.5Royal blue · ΔE 15Cornflower blue · ΔE 17.1Slate blue · ΔE 25.4Medium purple · ΔE 26.5Medium slateblue · ΔE 26.7
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 5.52, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FDA733
Analogous#33EEFD, #4233FD
Triadic#FD3389, #89FD33
Split complementary#FD4233, #EEFD33
Tetradic#FD33EE, #FDA733, #33FD42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFEFF
Lighter +30%#CBE1FE
Lighter +20%#98C3FE
Lighter +10%#66A6FD
Darker −10%#026CFB
Darker −20%#0256C8
Darker −30%#014196
Darker −40%#012B63
More saturated +25%#3189FF
Less saturated −25%#4D8DE3

Channel breakdown

R51
G137
B253
Red51 (20%)
Green137 (53.7%)
Blue253 (99.2%)
Hue214.46°
Saturation (HSL)98.06%
Lightness59.61%
Dominant channelBlue
Hex per channelR 33 · G 89 · B FD

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Every value on this page was computed from “3389fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.