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Recognised as Colour

#657FB9

  • #657FB9
  • Blue
  • Dark
  • Nearest: Steel blue

#657FB9 is a blue with RGB values 101, 127, 185 and HSL 221°, 38%, 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

#657FB9#657FB9
HEX#657FB9
RGBrgb(101, 127, 185)
RGB (0–1)0.3961, 0.498, 0.7255
RGB percentages39.6%, 49.8%, 72.5%
HSLhsl(221.4, 37.5%, 56.1%)
HSV / HSBhsv(221.4, 45.4%, 72.5%)
CMYK45.4%, 31.4%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,833
CSS custom property--colour: #657FB9;

Brightness & contrast

Relative luminance0.21448WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.29:1
Contrast with white3.97:1WCAG normal text: Fail
Contrast with black5.29:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#9A8046

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6A84BBno red cones; affects about 1% of men; ΔE 2.7 from the original
Deuteranopia#617CB8no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#458B94no blue cones; rare, and affects men and women equally; ΔE 33.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.97:1WCAG large text: AA
Contrast with black, large text5.29:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10.5Cornflower blue · ΔE 18.2Light slate grey · ΔE 24Slate grey · ΔE 24.4Dodgerblue · ΔE 30.8Dark slateblue · ΔE 31.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.55, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B99F65
Analogous#65A9B9, #7565B9
Triadic#B9657F, #7FB965
Split complementary#B97565, #A9B965
Tetradic#B965A9, #B99F65, #65B975

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F1F4F9
Lighter +30%#CED6E9
Lighter +20%#ABB9D9
Lighter +10%#889CC9
Darker −10%#4965A2
Darker −20%#3A4F7F
Darker −30%#2A395B
Darker −40%#1A2338
More saturated +25%#4974D5
Less saturated −25%#818A9D

Channel breakdown

R101
G127
B185
Red101 (39.6%)
Green127 (49.8%)
Blue185 (72.5%)
Hue221.43°
Saturation (HSL)37.5%
Lightness56.08%
Dominant channelBlue
Hex per channelR 65 · G 7F · B B9

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Every value on this page was computed from “657fb9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.