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Colour

#297FFF

  • #297FFF
  • Blue
  • Dark
  • Nearest: Royal blue

#297FFF is a blue with RGB values 41, 127, 255 and HSL 216°, 100%, 58%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#297FFF#297FFF
HEX#297FFF
RGBrgb(41, 127, 255)
RGB (0–1)0.1608, 0.498, 1
RGB percentages16.1%, 49.8%, 100%
HSLhsl(215.9, 100%, 58%)
HSV / HSBhsv(215.9, 83.9%, 100%)
CMYK83.9%, 50.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,719,743
CSS custom property--colour: #297FFF;

Brightness & contrast

Relative luminance0.2287WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.57:1
Contrast with white3.77:1WCAG normal text: Fail
Contrast with black5.57:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#D68000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#298EFFno red cones; affects about 1% of men; ΔE 12 from the original
Deuteranopia#007BFCno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#009EB3no blue cones; rare, and affects men and women equally; ΔE 69.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.77:1WCAG large text: AA
Contrast with black, large text5.57:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.3Dodgerblue · ΔE 14Medium slateblue · ΔE 20.8Slate blue · ΔE 21.9Cornflower blue · ΔE 25.3Medium purple · ΔE 25.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFA929
Analogous#29EAFF, #3E29FF
Triadic#FF297F, #7FFF29
Split complementary#FF3E29, #EAFF29
Tetradic#FF29EA, #FFA929, #29FF3E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F5F9FF
Lighter +30%#C2DBFF
Lighter +20%#8FBCFF
Lighter +10%#5C9EFF
Darker −10%#0062F5
Darker −20%#004EC2
Darker −30%#00398F
Darker −40%#00255C
More saturated +25%#297FFF
Less saturated −25%#4484E4

Channel breakdown

R41
G127
B255
Red41 (16.1%)
Green127 (49.8%)
Blue255 (100%)
Hue215.89°
Saturation (HSL)100%
Lightness58.04%
Dominant channelBlue
Hex per channelR 29 · G 7F · B FF

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