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Recognised as Colour

#658AD7

  • #658AD7
  • Blue
  • Dark
  • Nearest: Cornflower blue

#658AD7 is a blue with RGB values 101, 138, 215 and HSL 221°, 59%, 62%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#658AD7#658AD7
HEX#658AD7
RGBrgb(101, 138, 215)
RGB (0–1)0.3961, 0.5412, 0.8431
RGB percentages39.6%, 54.1%, 84.3%
HSLhsl(220.5, 58.8%, 62%)
HSV / HSBhsv(220.5, 53%, 84.3%)
CMYK53%, 35.8%, 0%, 15.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,654,679
CSS custom property--colour: #658AD7;

Brightness & contrast

Relative luminance0.2585WCAG 2.x, 0 is black and 1 is white
Perceived brightness139.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.17:1
Contrast with white3.4:1WCAG normal text: Fail
Contrast with black6.17:1WCAG normal text: AA
Greyscale equivalent#888888
Inverted#9A7528

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B91DAno red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#5E86D5no green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#299BA6no blue cones; rare, and affects men and women equally; ΔE 46 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.4:1WCAG large text: AA
Contrast with black, large text6.17:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 7.1Steel blue · ΔE 18.1Dodgerblue · ΔE 20Medium purple · ΔE 28.7Royal blue · ΔE 29.6Deep skyblue · ΔE 30.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 7.12, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D7B265
Analogous#65C3D7, #7965D7
Triadic#D7658A, #8AD765
Split complementary#D77965, #C3D765
Tetradic#D765C3, #D7B265, #65D779

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DEE6F7
Lighter +20%#B6C8EC
Lighter +10%#8DA9E2
Darker −10%#3D6BCC
Darker −20%#2C55AA
Darker −30%#224181
Darker −40%#172C59
More saturated +25%#4D81EF
Less saturated −25%#7D93BF

Channel breakdown

R101
G138
B215
Red101 (39.6%)
Green138 (54.1%)
Blue215 (84.3%)
Hue220.53°
Saturation (HSL)58.76%
Lightness61.96%
Dominant channelBlue
Hex per channelR 65 · G 8A · B D7

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Every value on this page was computed from “658ad7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.