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Colour

#6391FB

  • #6391FB
  • Blue
  • Dark
  • Nearest: Dodgerblue

#6391FB is a blue with RGB values 99, 145, 251 and HSL 222°, 95%, 69%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#6391FB#6391FB
HEX#6391FB
RGBrgb(99, 145, 251)
RGB (0–1)0.3882, 0.5686, 0.9843
RGB percentages38.8%, 56.9%, 98.4%
HSLhsl(221.8, 95%, 68.6%)
HSV / HSBhsv(221.8, 60.6%, 98.4%)
CMYK60.6%, 42.2%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,525,435
CSS custom property--colour: #6391FB;

Brightness & contrast

Relative luminance0.29868WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.97:1
Contrast with white3.01:1WCAG normal text: Fail
Contrast with black6.97:1WCAG normal text: AA
Greyscale equivalent#8F8F8F
Inverted#9C6E04

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#619CFFno red cones; affects about 1% of men; ΔE 6.9 from the original
Deuteranopia#4B8EF9no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#00A9BAno blue cones; rare, and affects men and women equally; ΔE 60 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.01:1WCAG large text: AA
Contrast with black, large text6.97:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 8.7Cornflower blue · ΔE 10.7Royal blue · ΔE 18.7Medium purple · ΔE 23Slate blue · ΔE 25.7Medium slateblue · ΔE 27.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 8.67, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FBCD63
Analogous#63DDFB, #8163FB
Triadic#FB6391, #91FB63
Split complementary#FB8163, #DDFB63
Tetradic#FB63DD, #FBCD63, #63FB81

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F8FAFF
Lighter +20%#C6D7FE
Lighter +10%#95B4FC
Darker −10%#316EFA
Darker −20%#064DF2
Darker −30%#053EC0
Darker −40%#042E8E
More saturated +25%#5F8FFF
Less saturated −25%#7799E7

Channel breakdown

R99
G145
B251
Red99 (38.8%)
Green145 (56.9%)
Blue251 (98.4%)
Hue221.84°
Saturation (HSL)95%
Lightness68.63%
Dominant channelBlue
Hex per channelR 63 · G 91 · B FB

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Every value on this page was computed from “6391fb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.