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Recognised as Colour

#657FB7

  • #657FB7
  • Blue
  • Dark
  • Nearest: Steel blue

#657FB7 is a blue with RGB values 101, 127, 183 and HSL 221°, 36%, 56%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#657FB7#657FB7
HEX#657FB7
RGBrgb(101, 127, 183)
RGB (0–1)0.3961, 0.498, 0.7176
RGB percentages39.6%, 49.8%, 71.8%
HSLhsl(221, 36.3%, 55.7%)
HSV / HSBhsv(221, 44.8%, 71.8%)
CMYK44.8%, 30.6%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,831
CSS custom property--colour: #657FB7;

Brightness & contrast

Relative luminance0.21364WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.27:1
Contrast with white3.98:1WCAG normal text: Fail
Contrast with black5.27:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#9A8048

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B83B9no red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#627CB6no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#478B93no blue cones; rare, and affects men and women equally; ΔE 33 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.98:1WCAG large text: AA
Contrast with black, large text5.27:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9.9Cornflower blue · ΔE 19.3Light slate grey · ΔE 22.9Slate grey · ΔE 23.2Light steelblue · ΔE 31.2Light skyblue · ΔE 31.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.88, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B79D65
Analogous#65A8B7, #7465B7
Triadic#B7657F, #7FB765
Split complementary#B77465, #A8B765
Tetradic#B765A8, #B79D65, #65B774

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F0F3F8
Lighter +30%#CDD6E8
Lighter +20%#ABB9D7
Lighter +10%#889CC7
Darker −10%#4A659F
Darker −20%#3A4F7C
Darker −30%#2A3959
Darker −40%#192337
More saturated +25%#4975D3
Less saturated −25%#81899B

Channel breakdown

R101
G127
B183
Red101 (39.6%)
Green127 (49.8%)
Blue183 (71.8%)
Hue220.98°
Saturation (HSL)36.28%
Lightness55.69%
Dominant channelBlue
Hex per channelR 65 · G 7F · B B7

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Every value on this page was computed from “657fb7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.