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Colour

#6587CD

  • #6587CD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#6587CD is a blue with RGB values 101, 135, 205 and HSL 220°, 51%, 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

#6587CD#6587CD
HEX#6587CD
RGBrgb(101, 135, 205)
RGB (0–1)0.3961, 0.5294, 0.8039
RGB percentages39.6%, 52.9%, 80.4%
HSLhsl(220.4, 51%, 60%)
HSV / HSBhsv(220.4, 50.7%, 80.4%)
CMYK50.7%, 34.1%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,653,901
CSS custom property--colour: #6587CD;

Brightness & contrast

Relative luminance0.24502WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.9:1
Contrast with white3.56:1WCAG normal text: Fail
Contrast with black5.9:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#9A7832

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C8DD0no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#6083CBno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#3596A0no blue cones; rare, and affects men and women equally; ΔE 41.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.56:1WCAG large text: AA
Contrast with black, large text5.9:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11Steel blue · ΔE 14.6Dodgerblue · ΔE 23.8Deep skyblue · ΔE 30.1Light slate grey · ΔE 30.4Medium purple · ΔE 30.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CDAB65
Analogous#65BBCD, #7765CD
Triadic#CD6587, #87CD65
Split complementary#CD7765, #BBCD65
Tetradic#CD65BB, #CDAB65, #65CD77

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9E1F3
Lighter +20%#B2C3E6
Lighter +10%#8BA5DA
Darker −10%#3E69C1
Darker −20%#32549A
Darker −30%#253F74
Darker −40%#192A4D
More saturated +25%#4B7EE7
Less saturated −25%#7E90B4

Channel breakdown

R101
G135
B205
Red101 (39.6%)
Green135 (52.9%)
Blue205 (80.4%)
Hue220.38°
Saturation (HSL)50.98%
Lightness60%
Dominant channelBlue
Hex per channelR 65 · G 87 · B CD

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Every value on this page was computed from “6587cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.