Recognised as Colour

#FF501D

#FF501D
Red
Dark
Nearest: Orange red

#FF501D is a red with RGB values 255, 80, 29 and HSL 14°, 100%, 56%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF501D#FF501D

HEX#FF501D

RGBrgb(255, 80, 29)

RGB (0–1)1, 0.3137, 0.1137

RGB percentages100%, 31.4%, 11.4%

HSLhsl(13.5, 100%, 55.7%)

HSV / HSBhsv(13.5, 88.6%, 100%)

CMYK0%, 68.6%, 88.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,732,189

CSS custom property--colour: #FF501D;

Brightness & contrast

Relative luminance0.27086WCAG 2.x, 0 is black and 1 is white

Perceived brightness152.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.42:1

Contrast with white3.27:1WCAG normal text: Fail

Contrast with black6.42:1WCAG normal text: AA

Greyscale equivalent#727272

Inverted#00AFE2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#857510no red cones; affects about 1% of men; ΔE 70 from the original

Deuteranopia#B09C0Cno green cones; the most common form, about 1% of men; ΔE 70.2 from the original

Tritanopia#FF0048no blue cones; rare, and affects men and women equally; ΔE 32 from the original

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

Contrast with white, large text3.27:1WCAG large text: AA

Contrast with black, large text6.42:1WCAG large text: AAA

Named colours

Orange red · ΔE 7.4 Red · ΔE 17.5 Tomato · ΔE 17.7 Coral · ΔE 25.6 Chocolate · ΔE 28 Dark orange · ΔE 32

Nearest named CSS colourOrange red (#FF4500)ΔE 7.42, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1DCCFF

Analogous#FF1D5B, #FFC11D

Triadic#1DFF50, #501DFF

Split complementary#1DFFC1, #1D5BFF

Tetradic#5BFF1D, #1DCCFF, #C11DFF

Tints, shades & saturation

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

Lighter +40%#FFEEE9

Lighter +30%#FFC6B6

Lighter +20%#FF9F83

Lighter +10%#FF7750

Darker −10%#E93500

Darker −20%#B62900

Darker −30%#831E00

Darker −40%#501200

More saturated +25%#FF501D

Less saturated −25%#E36039

Channel breakdown

R255

G80

B29

Red255 (100%)

Green80 (31.4%)

Blue29 (11.4%)

Hue13.54°

Saturation (HSL)100%

Lightness55.69%

Dominant channelRed

Hex per channelR FF · G 50 · B 1D

Keep nerding

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

#FF501D

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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