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Recognised as Colour

#191CFF

  • #191CFF
  • Blue
  • Dark
  • Nearest: Blue

#191CFF is a blue with RGB values 25, 28, 255 and HSL 239°, 100%, 55%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#191CFF#191CFF
HEX#191CFF
RGBrgb(25, 28, 255)
RGB (0–1)0.098, 0.1098, 1
RGB percentages9.8%, 11%, 100%
HSLhsl(239.2, 100%, 54.9%)
HSV / HSBhsv(239.2, 90.2%, 100%)
CMYK90.2%, 89%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,645,823
CSS custom property--colour: #191CFF;

Brightness & contrast

Relative luminance0.08257WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.92:1
Contrast with white7.92:1WCAG normal text: AAA
Contrast with black2.65:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#E6E300

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005DFFno red cones; affects about 1% of men; ΔE 39.5 from the original
Deuteranopia#0044FCno green cones; the most common form, about 1% of men; ΔE 22.5 from the original
Tritanopia#006F98no blue cones; rare, and affects men and women equally; ΔE 113.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.92:1WCAG large text: AAA
Contrast with black, large text2.65:1WCAG large text: Fail

Named colours

Blue · ΔE 6.8Medium blue · ΔE 17.2Blue violet · ΔE 30.7Dark violet · ΔE 34.2Dark orchid · ΔE 45.8Dark blue · ΔE 46.9
Nearest named CSS colourBlue (#0000FF)ΔE 6.8, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFFC19
Analogous#198FFF, #8919FF
Triadic#FF191C, #1CFF19
Split complementary#FF8919, #8FFF19
Tetradic#FF198F, #FFFC19, #19FF89

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E5E5FF
Lighter +30%#B2B3FF
Lighter +20%#7F81FF
Lighter +10%#4C4EFF
Darker −10%#0003E5
Darker −20%#0002B2
Darker −30%#00027F
Darker −40%#00014C
More saturated +25%#191CFF
Less saturated −25%#3638E2

Channel breakdown

R25
G28
B255
Red25 (9.8%)
Green28 (11%)
Blue255 (100%)
Hue239.22°
Saturation (HSL)100%
Lightness54.9%
Dominant channelBlue
Hex per channelR 19 · G 1C · B FF

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Every value on this page was computed from “191cff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.