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Recognised as Colour

#197DFC

  • #197DFC
  • Blue
  • Dark
  • Nearest: Royal blue

#197DFC is a blue with RGB values 25, 125, 252 and HSL 214°, 97%, 54%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#197DFC#197DFC
HEX#197DFC
RGBrgb(25, 125, 252)
RGB (0–1)0.098, 0.4902, 0.9882
RGB percentages9.8%, 49%, 98.8%
HSLhsl(213.6, 97.4%, 54.3%)
HSV / HSBhsv(213.6, 90.1%, 98.8%)
CMYK90.1%, 50.4%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,670,652
CSS custom property--colour: #197DFC;

Brightness & contrast

Relative luminance0.21902WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.38:1
Contrast with white3.9:1WCAG normal text: Fail
Contrast with black5.38:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#E68203

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#248BFFno red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#0078FAno green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#009CB1no blue cones; rare, and affects men and women equally; ΔE 68.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.9:1WCAG large text: AA
Contrast with black, large text5.38:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.1Dodgerblue · ΔE 13.7Medium slateblue · ΔE 21.5Slate blue · ΔE 22Cornflower blue · ΔE 25.2Medium purple · ΔE 26.3
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FC9819
Analogous#19EFFC, #2719FC
Triadic#FC197D, #7DFC19
Split complementary#FC2619, #EFFC19
Tetradic#FC19EF, #FC9819, #19FC26

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E2EFFF
Lighter +30%#B0D2FE
Lighter +20%#7EB6FD
Lighter +10%#4B99FD
Darker −10%#0364DF
Darker −20%#024DAD
Darker −30%#02377A
Darker −40%#012048
More saturated +25%#167DFF
Less saturated −25%#3680DF

Channel breakdown

R25
G125
B252
Red25 (9.8%)
Green125 (49%)
Blue252 (98.8%)
Hue213.57°
Saturation (HSL)97.42%
Lightness54.31%
Dominant channelBlue
Hex per channelR 19 · G 7D · B FC

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Every value on this page was computed from “197dfc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.