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Colour

#6397EE

  • #6397EE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#6397EE is a blue with RGB values 99, 151, 238 and HSL 218°, 80%, 66%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#6397EE#6397EE
HEX#6397EE
RGBrgb(99, 151, 238)
RGB (0–1)0.3882, 0.5922, 0.9333
RGB percentages38.8%, 59.2%, 93.3%
HSLhsl(217.6, 80.3%, 66.1%)
HSV / HSBhsv(217.6, 58.4%, 93.3%)
CMYK58.4%, 36.6%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,526,958
CSS custom property--colour: #6397EE;

Brightness & contrast

Relative luminance0.30959WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.19:1
Contrast with white2.92:1WCAG normal text: Fail
Contrast with black7.19:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#9C6811

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#729EF2no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#6091ECno green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#00AAB7no blue cones; rare, and affects men and women equally; ΔE 50.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.92:1WCAG large text: Fail
Contrast with black, large text7.19:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 1.2Dodgerblue · ΔE 14.8Steel blue · ΔE 23.1Royal blue · ΔE 28.3Deep skyblue · ΔE 28.6Medium purple · ΔE 29.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 1.22, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EEBA63
Analogous#63DCEE, #7563EE
Triadic#EE6397, #97EE63
Split complementary#EE7563, #DCEE63
Tetradic#EE63DC, #EEBA63, #63EE75

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EDF3FD
Lighter +20%#BFD4F8
Lighter +10%#91B6F3
Darker −10%#3578E9
Darker −20%#175ED4
Darker −30%#1249A6
Darker −40%#0D3578
More saturated +25%#5293FF
Less saturated −25%#799CD8

Channel breakdown

R99
G151
B238
Red99 (38.8%)
Green151 (59.2%)
Blue238 (93.3%)
Hue217.55°
Saturation (HSL)80.35%
Lightness66.08%
Dominant channelBlue
Hex per channelR 63 · G 97 · B EE

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Every value on this page was computed from “6397ee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.