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Colour

#658AD1

  • #658AD1
  • Blue
  • Dark
  • Nearest: Cornflower blue

#658AD1 is a blue with RGB values 101, 138, 209 and HSL 219°, 54%, 61%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#658AD1#658AD1
HEX#658AD1
RGBrgb(101, 138, 209)
RGB (0–1)0.3961, 0.5412, 0.8196
RGB percentages39.6%, 54.1%, 82%
HSLhsl(219.4, 54%, 60.8%)
HSV / HSBhsv(219.4, 51.7%, 82%)
CMYK51.7%, 34%, 0%, 18%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,654,673
CSS custom property--colour: #658AD1;

Brightness & contrast

Relative luminance0.25547WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.11:1
Contrast with white3.44:1WCAG normal text: Fail
Contrast with black6.11:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#9A752E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6E90D4no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#6286CFno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#3099A4no blue cones; rare, and affects men and women equally; ΔE 41.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.44:1WCAG large text: AA
Contrast with black, large text6.11:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10Steel blue · ΔE 14.9Dodgerblue · ΔE 23.1Deep skyblue · ΔE 29Light slate grey · ΔE 30.9Light skyblue · ΔE 30.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D1AC65
Analogous#65C0D1, #7665D1
Triadic#D1658A, #8AD165
Split complementary#D17665, #C0D165
Tetradic#D165C0, #D1AC65, #65D176

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DBE4F4
Lighter +20%#B4C6E8
Lighter +10%#8CA8DD
Darker −10%#3E6CC5
Darker −20%#3056A0
Darker −30%#244179
Darker −40%#182C52
More saturated +25%#4C82EA
Less saturated −25%#7E92B8

Channel breakdown

R101
G138
B209
Red101 (39.6%)
Green138 (54.1%)
Blue209 (82%)
Hue219.44°
Saturation (HSL)54%
Lightness60.78%
Dominant channelBlue
Hex per channelR 65 · G 8A · B D1

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Every value on this page was computed from “658ad1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.