Colour

#FF1111

#FF1111
Red
Dark
Nearest: Red

#FF1111 is a red with RGB values 255, 17, 17 and HSL 0°, 100%, 53%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF1111#FF1111

HEX#FF1111

HEX (short)#F11

RGBrgb(255, 17, 17)

RGB (0–1)1, 0.0667, 0.0667

RGB percentages100%, 6.7%, 6.7%

HSLhsl(0, 100%, 53.3%)

HSV / HSBhsv(0, 93.3%, 100%)

CMYK0%, 93.3%, 93.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,716,049

CSS custom property--colour: #FF1111;

Brightness & contrast

Relative luminance0.21701WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.34:1

Contrast with white3.93:1WCAG normal text: Fail

Contrast with black5.34:1WCAG normal text: AA

Greyscale equivalent#444444

Inverted#00EEEE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6106no red cones; affects about 1% of men; ΔE 85.6 from the original

Deuteranopia#A49100no green cones; the most common form, about 1% of men; ΔE 84.7 from the original

Tritanopia#FF001Ano blue cones; rare, and affects men and women equally; ΔE 3.7 from the original

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

Contrast with white, large text3.93:1WCAG large text: AA

Contrast with black, large text5.34:1WCAG large text: AAA

Named colours

Red · ΔE 4.3 Orange red · ΔE 13.2 Tomato · ΔE 28.2 Crimson · ΔE 31.3 Firebrick · ΔE 37.3 Coral · ΔE 39.5

Nearest named CSS colourRed (#FF0000)ΔE 4.27, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#11FFFF

Analogous#FF1188, #FF8811

Triadic#11FF11, #1111FF

Split complementary#11FF88, #1188FF

Tetradic#88FF11, #11FFFF, #8811FF

Tints, shades & saturation

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

Lighter +40%#FFDDDD

Lighter +30%#FFAAAA

Lighter +20%#FF7777

Lighter +10%#FF4444

Darker −10%#DD0000

Darker −20%#AA0000

Darker −30%#770000

Darker −40%#440000

More saturated +25%#FF1111

Less saturated −25%#E12F2F

Channel breakdown

R255

G17

B17

Red255 (100%)

Green17 (6.7%)

Blue17 (6.7%)

Hue0°

Saturation (HSL)100%

Lightness53.33%

Dominant channelRed

Hex per channelR FF · G 11 · B 11

Keep nerding

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#FF1111

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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