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Recognised as Colour

#657DB0

  • #657DB0
  • Blue
  • Dark
  • Nearest: Steel blue

#657DB0 is a blue with RGB values 101, 125, 176 and HSL 221°, 32%, 54%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#657DB0#657DB0
HEX#657DB0
RGBrgb(101, 125, 176)
RGB (0–1)0.3961, 0.4902, 0.6902
RGB percentages39.6%, 49%, 69%
HSLhsl(220.8, 32.2%, 54.3%)
HSV / HSBhsv(220.8, 42.6%, 69%)
CMYK42.6%, 29%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,651,312
CSS custom property--colour: #657DB0;

Brightness & contrast

Relative luminance0.20569WCAG 2.x, 0 is black and 1 is white
Perceived brightness125.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.11:1
Contrast with white4.11:1WCAG normal text: Fail
Contrast with black5.11:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#9A824F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6B81B2no red cones; affects about 1% of men; ΔE 2.1 from the original
Deuteranopia#637AAFno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#4B888Fno blue cones; rare, and affects men and women equally; ΔE 30.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.11:1WCAG large text: AA
Contrast with black, large text5.11:1WCAG large text: AAA

Named colours

Steel blue · ΔE 9.3Light slate grey · ΔE 20.3Slate grey · ΔE 20.4Cornflower blue · ΔE 22.2Gray · ΔE 30.2Light steelblue · ΔE 30.4
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.28, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B09865
Analogous#65A3B0, #7265B0
Triadic#B0657D, #7DB065
Split complementary#B07265, #A2B065
Tetradic#B065A3, #B09865, #65B072

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECEFF5
Lighter +30%#CAD2E4
Lighter +20%#A8B6D3
Lighter +10%#8799C1
Darker −10%#4D6495
Darker −20%#3B4D74
Darker −30%#2A3752
Darker −40%#192030
More saturated +25%#4873CD
Less saturated −25%#828793

Channel breakdown

R101
G125
B176
Red101 (39.6%)
Green125 (49%)
Blue176 (69%)
Hue220.8°
Saturation (HSL)32.19%
Lightness54.31%
Dominant channelBlue
Hex per channelR 65 · G 7D · B B0

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Every value on this page was computed from “657db0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.