Recognised as Colour

#FF2F01

#FF2F01
Red
Dark
Nearest: Red

#FF2F01 is a red with RGB values 255, 47, 1 and HSL 11°, 100%, 50%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FF2F01#FF2F01

HEX#FF2F01

RGBrgb(255, 47, 1)

RGB (0–1)1, 0.1843, 0.0039

RGB percentages100%, 18.4%, 0.4%

HSLhsl(10.9, 100%, 50.2%)

HSV / HSBhsv(10.9, 99.6%, 100%)

CMYK0%, 81.6%, 99.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,723,713

CSS custom property--colour: #FF2F01;

Brightness & contrast

Relative luminance0.23295WCAG 2.x, 0 is black and 1 is white

Perceived brightness144 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.66:1

Contrast with white3.71:1WCAG normal text: Fail

Contrast with black5.66:1WCAG normal text: AA

Greyscale equivalent#585858

Inverted#00D0FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#766700no red cones; affects about 1% of men; ΔE 80.6 from the original

Deuteranopia#A89500no green cones; the most common form, about 1% of men; ΔE 80 from the original

Tritanopia#FF002Bno blue cones; rare, and affects men and women equally; ΔE 17.3 from the original

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

Contrast with white, large text3.71:1WCAG large text: AA

Contrast with black, large text5.66:1WCAG large text: AAA

Named colours

Red · ΔE 6.5 Orange red · ΔE 6.7 Tomato · ΔE 27.6 Crimson · ΔE 35.3 Coral · ΔE 37 Chocolate · ΔE 38.5

Nearest named CSS colourRed (#FF0000)ΔE 6.52, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01D1FF

Analogous#FF0152, #FFAE01

Triadic#01FF2F, #2F01FF

Split complementary#01FFAE, #0152FF

Tetradic#52FF01, #01D1FF, #AE01FF

Tints, shades & saturation

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

Lighter +40%#FFD6CD

Lighter +30%#FFAC9A

Lighter +20%#FF8367

Lighter +10%#FF5934

Darker −10%#CD2500

Darker −20%#9A1C00

Darker −30%#671300

Darker −40%#340900

More saturated +25%#FF2F01

Less saturated −25%#DF4321

Channel breakdown

R255

G47

Red255 (100%)

Green47 (18.4%)

Blue1 (0.4%)

Hue10.87°

Saturation (HSL)100%

Lightness50.2%

Dominant channelRed

Hex per channelR FF · G 2F · B 01

Keep nerding

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

#FF2F01

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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