Colour

#FF2F2B

#FF2F2B
Red
Dark
Nearest: Red

#FF2F2B is a red with RGB values 255, 47, 43 and HSL 1°, 100%, 58%. 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

#FF2F2B#FF2F2B

HEX#FF2F2B

RGBrgb(255, 47, 43)

RGB (0–1)1, 0.1843, 0.1686

RGB percentages100%, 18.4%, 16.9%

HSLhsl(1.1, 100%, 58.4%)

HSV / HSBhsv(1.1, 83.1%, 100%)

CMYK0%, 81.6%, 83.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,723,755

CSS custom property--colour: #FF2F2B;

Brightness & contrast

Relative luminance0.23467WCAG 2.x, 0 is black and 1 is white

Perceived brightness144.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.69:1

Contrast with white3.69:1WCAG normal text: Fail

Contrast with black5.69:1WCAG normal text: AA

Greyscale equivalent#5B5B5B

Inverted#00D0D4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#756827no red cones; affects about 1% of men; ΔE 80.3 from the original

Deuteranopia#A7951Eno green cones; the most common form, about 1% of men; ΔE 80.5 from the original

Tritanopia#FF0032no blue cones; rare, and affects men and women equally; ΔE 8.6 from the original

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

Contrast with white, large text3.69:1WCAG large text: AA

Contrast with black, large text5.69:1WCAG large text: AAA

Named colours

Red · ΔE 14.6 Orange red · ΔE 16.6 Tomato · ΔE 19.4 Crimson · ΔE 22.3 Firebrick · ΔE 29.6 Coral · ΔE 32.1

Nearest named CSS colourRed (#FF0000)ΔE 14.63, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2BFBFF

Analogous#FF2B91, #FF992B

Triadic#2BFF2F, #2F2BFF

Split complementary#2BFF99, #2B91FF

Tetradic#91FF2B, #2BFBFF, #992BFF

Tints, shades & saturation

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

Lighter +40%#FFF7F7

Lighter +30%#FFC5C4

Lighter +20%#FF9391

Lighter +10%#FF615E

Darker −10%#F70500

Darker −20%#C40400

Darker −30%#910300

Darker −40%#5E0200

More saturated +25%#FF2F2B

Less saturated −25%#E54846

Channel breakdown

R255

G47

B43

Red255 (100%)

Green47 (18.4%)

Blue43 (16.9%)

Hue1.13°

Saturation (HSL)100%

Lightness58.43%

Dominant channelRed

Hex per channelR FF · G 2F · B 2B

Keep nerding

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

#FF2F2B

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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