Colour

#FF1911

#FF1911
Red
Dark
Nearest: Red

#FF1911 is a red with RGB values 255, 25, 17 and HSL 2°, 100%, 53%. 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

#FF1911#FF1911

HEX#FF1911

RGBrgb(255, 25, 17)

RGB (0–1)1, 0.098, 0.0667

RGB percentages100%, 9.8%, 6.7%

HSLhsl(2, 100%, 53.3%)

HSV / HSBhsv(2, 93.3%, 100%)

CMYK0%, 90.2%, 93.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,718,097

CSS custom property--colour: #FF1911;

Brightness & contrast

Relative luminance0.21996WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.4:1

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

Contrast with black5.4:1WCAG normal text: AA

Greyscale equivalent#494949

Inverted#00E6EE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706205no red cones; affects about 1% of men; ΔE 84.3 from the original

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

Tritanopia#FF001Eno blue cones; rare, and affects men and women equally; ΔE 5.8 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 text5.4:1WCAG large text: AAA

Named colours

Red · ΔE 4.5 Orange red · ΔE 12.3 Tomato · ΔE 27.6 Crimson · ΔE 31.3 Firebrick · ΔE 37 Coral · ΔE 38.7

Nearest named CSS colourRed (#FF0000)ΔE 4.49, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#11F7FF

Analogous#FF1180, #FF9011

Triadic#11FF19, #1911FF

Split complementary#11FF90, #1180FF

Tetradic#80FF11, #11F7FF, #9011FF

Tints, shades & saturation

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

Lighter +40%#FFDEDD

Lighter +30%#FFADAA

Lighter +20%#FF7C77

Lighter +10%#FF4A44

Darker −10%#DD0700

Darker −20%#AA0600

Darker −30%#770400

Darker −40%#440200

More saturated +25%#FF1911

Less saturated −25%#E1352F

Channel breakdown

R255

G25

B17

Red255 (100%)

Green25 (9.8%)

Blue17 (6.7%)

Hue2.02°

Saturation (HSL)100%

Lightness53.33%

Dominant channelRed

Hex per channelR FF · G 19 · B 11

Keep nerding

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#FF1911

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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