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Recognised as Colour

#297DCD

  • #297DCD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#297DCD is a blue with RGB values 41, 125, 205 and HSL 209°, 67%, 48%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#297DCD#297DCD
HEX#297DCD
RGBrgb(41, 125, 205)
RGB (0–1)0.1608, 0.4902, 0.8039
RGB percentages16.1%, 49%, 80.4%
HSLhsl(209.3, 66.7%, 48.2%)
HSV / HSBhsv(209.3, 80%, 80.4%)
CMYK80%, 39%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,719,181
CSS custom property--colour: #297DCD;

Brightness & contrast

Relative luminance0.19546WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.91:1
Contrast with white4.28:1WCAG normal text: Fail
Contrast with black4.91:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#D68232

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5682D0no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#3C74CBno green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#00909Bno blue cones; rare, and affects men and women equally; ΔE 45.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.28:1WCAG large text: AA
Contrast with black, large text4.91:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.1Steel blue · ΔE 17.9Dodgerblue · ΔE 18.2Royal blue · ΔE 28.5Deep skyblue · ΔE 30.6Dark slateblue · ΔE 31.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD7929
Analogous#29CDCB, #292BCD
Triadic#CD297D, #7DCD29
Split complementary#CD292B, #CDCB29
Tetradic#CB29CD, #CD7929, #2BCD29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CDE1F5
Lighter +30%#A3C8ED
Lighter +20%#78AFE4
Lighter +10%#4E96DC
Darker −10%#2063A3
Darker −20%#184978
Darker −30%#0F2F4E
Darker −40%#071523
More saturated +25%#0A7EEC
Less saturated −25%#487CAE

Channel breakdown

R41
G125
B205
Red41 (16.1%)
Green125 (49%)
Blue205 (80.4%)
Hue209.27°
Saturation (HSL)66.67%
Lightness48.24%
Dominant channelBlue
Hex per channelR 29 · G 7D · B CD

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Every value on this page was computed from “297dcd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.