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Recognised as Colour

#657DD3

  • #657DD3
  • Blue
  • Dark
  • Nearest: Cornflower blue

#657DD3 is a blue with RGB values 101, 125, 211 and HSL 227°, 56%, 61%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#657DD3#657DD3
HEX#657DD3
RGBrgb(101, 125, 211)
RGB (0–1)0.3961, 0.4902, 0.8275
RGB percentages39.6%, 49%, 82.7%
HSLhsl(226.9, 55.6%, 61.2%)
HSV / HSBhsv(226.9, 52.1%, 82.7%)
CMYK52.1%, 40.8%, 0%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,347
CSS custom property--colour: #657DD3;

Brightness & contrast

Relative luminance0.22137WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.43:1
Contrast with white3.87:1WCAG normal text: Fail
Contrast with black5.43:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#9A822C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A87D6no red cones; affects about 1% of men; ΔE 7.9 from the original
Deuteranopia#4E7DD1no green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#31909Eno blue cones; rare, and affects men and women equally; ΔE 49.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.87:1WCAG large text: AA
Contrast with black, large text5.43:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.2Dodgerblue · ΔE 18Medium purple · ΔE 21.5Royal blue · ΔE 22Steel blue · ΔE 24.7Slate blue · ΔE 24.7
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D3BB65
Analogous#65B4D3, #8465D3
Triadic#D3657D, #7DD365
Split complementary#D38465, #B4D365
Tetradic#D365B4, #D3BB65, #65D384

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DCE1F5
Lighter +20%#B4C0EA
Lighter +10%#8D9EDE
Darker −10%#3D5CC8
Darker −20%#2F48A3
Darker −30%#23377C
Darker −40%#182554
More saturated +25%#4C6FEC
Less saturated −25%#7E8BBA

Channel breakdown

R101
G125
B211
Red101 (39.6%)
Green125 (49%)
Blue211 (82.7%)
Hue226.91°
Saturation (HSL)55.56%
Lightness61.18%
Dominant channelBlue
Hex per channelR 65 · G 7D · B D3

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Every value on this page was computed from “657dd3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.