Colour

#FF1909

#FF1909
Red
Dark
Nearest: Red

#FF1909 is a red with RGB values 255, 25, 9 and HSL 4°, 100%, 52%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF1909#FF1909

HEX#FF1909

RGBrgb(255, 25, 9)

RGB (0–1)1, 0.098, 0.0353

RGB percentages100%, 9.8%, 3.5%

HSLhsl(3.9, 100%, 51.8%)

HSV / HSBhsv(3.9, 96.5%, 100%)

CMYK0%, 90.2%, 96.5%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,718,089

CSS custom property--colour: #FF1909;

Brightness & contrast

Relative luminance0.21975WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.39:1

Contrast with white3.89:1WCAG normal text: Fail

Contrast with black5.39:1WCAG normal text: AA

Greyscale equivalent#494949

Inverted#00E6F6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706200no red cones; affects about 1% of men; ΔE 84.5 from the original

Deuteranopia#A59200no green cones; the most common form, about 1% of men; ΔE 83.8 from the original

Tritanopia#FF001Dno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text3.89:1WCAG large text: AA

Contrast with black, large text5.39:1WCAG large text: AAA

Named colours

Red · ΔE 2.9 Orange red · ΔE 11.4 Tomato · ΔE 28.8 Crimson · ΔE 33.3 Firebrick · ΔE 38.4 Coral · ΔE 39.5

Nearest named CSS colourRed (#FF0000)ΔE 2.9, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#09EFFF

Analogous#FF0974, #FF9409

Triadic#09FF19, #1909FF

Split complementary#09FF94, #0974FF

Tetradic#74FF09, #09EFFF, #9409FF

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFD8D5

Lighter +30%#FFA8A2

Lighter +20%#FF786F

Lighter +10%#FF493C

Darker −10%#D50E00

Darker −20%#A20B00

Darker −30%#6F0700

Darker −40%#3C0400

More saturated +25%#FF1909

Less saturated −25%#E03428

Channel breakdown

R255

G25

Red255 (100%)

Green25 (9.8%)

Blue9 (3.5%)

Hue3.9°

Saturation (HSL)100%

Lightness51.76%

Dominant channelRed

Hex per channelR FF · G 19 · B 09

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#FF1909

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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