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Recognised as Colour

#497DCD

  • #497DCD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#497DCD is a blue with RGB values 73, 125, 205 and HSL 216°, 57%, 55%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#497DCD#497DCD
HEX#497DCD
RGBrgb(73, 125, 205)
RGB (0–1)0.2863, 0.4902, 0.8039
RGB percentages28.6%, 49%, 80.4%
HSLhsl(216.4, 56.9%, 54.5%)
HSV / HSBhsv(216.4, 64.4%, 80.4%)
CMYK64.4%, 39%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,816,333
CSS custom property--colour: #497DCD;

Brightness & contrast

Relative luminance0.20491WCAG 2.x, 0 is black and 1 is white
Perceived brightness124.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.1:1
Contrast with white4.12:1WCAG normal text: Fail
Contrast with black5.1:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#B68232

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5984D0no red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#4677CBno green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#008F9Bno blue cones; rare, and affects men and women equally; ΔE 47.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.12:1WCAG large text: AA
Contrast with black, large text5.1:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10Dodgerblue · ΔE 18.3Steel blue · ΔE 18.8Royal blue · ΔE 26.5Dark slateblue · ΔE 28.5Medium purple · ΔE 29.2
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD9949
Analogous#49BFCD, #5749CD
Triadic#CD497D, #7DCD49
Split complementary#CD5749, #BFCD49
Tetradic#CD49BF, #CD9949, #49CD57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E9EFF9
Lighter +30%#C1D3EE
Lighter +20%#99B6E3
Lighter +10%#719AD8
Darker −10%#3164B2
Darker −20%#264D8A
Darker −30%#1B3762
Darker −40%#10213A
More saturated +25%#2C77EA
Less saturated −25%#6683B0

Channel breakdown

R73
G125
B205
Red73 (28.6%)
Green125 (49%)
Blue205 (80.4%)
Hue216.36°
Saturation (HSL)56.9%
Lightness54.51%
Dominant channelBlue
Hex per channelR 49 · G 7D · B CD

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Every value on this page was computed from “497dcd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.