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Recognised as Colour

#6387CE

  • #6387CE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#6387CE is a blue with RGB values 99, 135, 206 and HSL 220°, 52%, 60%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#6387CE#6387CE
HEX#6387CE
RGBrgb(99, 135, 206)
RGB (0–1)0.3882, 0.5294, 0.8078
RGB percentages38.8%, 52.9%, 80.8%
HSLhsl(219.8, 52.2%, 59.8%)
HSV / HSBhsv(219.8, 51.9%, 80.8%)
CMYK51.9%, 34.5%, 0%, 19.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,522,830
CSS custom property--colour: #6387CE;

Brightness & contrast

Relative luminance0.24437WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.89:1
Contrast with white3.57:1WCAG normal text: Fail
Contrast with black5.89:1WCAG normal text: AA
Greyscale equivalent#848484
Inverted#9C7831

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B8DD1no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#5F83CCno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#2E96A1no blue cones; rare, and affects men and women equally; ΔE 42 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.57:1WCAG large text: AA
Contrast with black, large text5.89:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.4Steel blue · ΔE 14.9Dodgerblue · ΔE 23.2Deep skyblue · ΔE 29.9Medium purple · ΔE 30.8Light slate grey · ΔE 31
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CEAA63
Analogous#63BCCE, #7563CE
Triadic#CE6387, #87CE63
Split complementary#CE7563, #BCCE63
Tetradic#CE63BC, #CEAA63, #63CE75

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FEFEFF
Lighter +30%#D7E1F3
Lighter +20%#B1C3E6
Lighter +10%#8AA5DA
Darker −10%#3D69C1
Darker −20%#31549A
Darker −30%#243F74
Darker −40%#182A4D
More saturated +25%#497FE8
Less saturated −25%#7D8FB4

Channel breakdown

R99
G135
B206
Red99 (38.8%)
Green135 (52.9%)
Blue206 (80.8%)
Hue219.81°
Saturation (HSL)52.2%
Lightness59.8%
Dominant channelBlue
Hex per channelR 63 · G 87 · B CE

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Every value on this page was computed from “6387ce” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.