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Recognised as Colour

#657EB1

  • #657EB1
  • Blue
  • Dark
  • Nearest: Steel blue

#657EB1 is a blue with RGB values 101, 126, 177 and HSL 220°, 33%, 55%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#657EB1#657EB1
HEX#657EB1
RGBrgb(101, 126, 177)
RGB (0–1)0.3961, 0.4941, 0.6941
RGB percentages39.6%, 49.4%, 69.4%
HSLhsl(220.3, 32.8%, 54.5%)
HSV / HSBhsv(220.3, 42.9%, 69.4%)
CMYK42.9%, 28.8%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,569
CSS custom property--colour: #657EB1;

Brightness & contrast

Relative luminance0.20863WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.17:1
Contrast with white4.06:1WCAG normal text: Fail
Contrast with black5.17:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#9A814E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C82B3no red cones; affects about 1% of men; ΔE 2.2 from the original
Deuteranopia#647BB0no green cones; the most common form, about 1% of men; ΔE 1.8 from the original
Tritanopia#4A8990no blue cones; rare, and affects men and women equally; ΔE 30.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.06:1WCAG large text: AA
Contrast with black, large text5.17:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9Light slate grey · ΔE 20.2Slate grey · ΔE 20.4Cornflower blue · ΔE 22Light steelblue · ΔE 30.1Gray · ΔE 30.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.98, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B19865
Analogous#65A4B1, #7265B1
Triadic#B1657E, #7EB165
Split complementary#B17265, #A4B165
Tetradic#B165A4, #B19865, #65B172

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECEFF6
Lighter +30%#CBD3E4
Lighter +20%#A9B7D3
Lighter +10%#879AC2
Darker −10%#4C6597
Darker −20%#3B4E75
Darker −30%#2A3753
Darker −40%#192131
More saturated +25%#4874CE
Less saturated −25%#828894

Channel breakdown

R101
G126
B177
Red101 (39.6%)
Green126 (49.4%)
Blue177 (69.4%)
Hue220.26°
Saturation (HSL)32.76%
Lightness54.51%
Dominant channelBlue
Hex per channelR 65 · G 7E · B B1

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Every value on this page was computed from “657eb1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.