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Recognised as Colour

#297BF9

  • #297BF9
  • Blue
  • Dark
  • Nearest: Royal blue

#297BF9 is a blue with RGB values 41, 123, 249 and HSL 216°, 95%, 57%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#297BF9#297BF9
HEX#297BF9
RGBrgb(41, 123, 249)
RGB (0–1)0.1608, 0.4824, 0.9765
RGB percentages16.1%, 48.2%, 97.6%
HSLhsl(216.3, 94.5%, 56.9%)
HSV / HSBhsv(216.3, 83.5%, 97.6%)
CMYK83.5%, 50.6%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,718,713
CSS custom property--colour: #297BF9;

Brightness & contrast

Relative luminance0.21477WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.3:1
Contrast with white3.97:1WCAG normal text: Fail
Contrast with black5.3:1WCAG normal text: AA
Greyscale equivalent#737373
Inverted#D68406

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#248AFEno red cones; affects about 1% of men; ΔE 9.8 from the original
Deuteranopia#0077F7no green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#009AAEno blue cones; rare, and affects men and women equally; ΔE 69 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.97:1WCAG large text: AA
Contrast with black, large text5.3:1WCAG large text: AAA

Named colours

Royal blue · ΔE 8.7Dodgerblue · ΔE 14.2Medium slateblue · ΔE 20.2Slate blue · ΔE 20.6Medium purple · ΔE 24.9Cornflower blue · ΔE 25.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.66, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F9A729
Analogous#29E3F9, #3F29F9
Triadic#F9297B, #7BF929
Split complementary#F93F29, #E3F929
Tetradic#F929E3, #F9A729, #29F93F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EFF5FF
Lighter +30%#BED7FD
Lighter +20%#8CB8FC
Lighter +10%#5B9AFA
Darker −10%#0760E8
Darker −20%#054BB7
Darker −30%#043785
Darker −40%#022254
More saturated +25%#237AFF
Less saturated −25%#4581DE

Channel breakdown

R41
G123
B249
Red41 (16.1%)
Green123 (48.2%)
Blue249 (97.6%)
Hue216.35°
Saturation (HSL)94.55%
Lightness56.86%
Dominant channelBlue
Hex per channelR 29 · G 7B · B F9

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Every value on this page was computed from “297bf9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.