Colour

#FF561F

#FF561F
Red
Dark
Nearest: Orange red

#FF561F is a red with RGB values 255, 86, 31 and HSL 15°, 100%, 56%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF561F#FF561F

HEX#FF561F

RGBrgb(255, 86, 31)

RGB (0–1)1, 0.3373, 0.1216

RGB percentages100%, 33.7%, 12.2%

HSLhsl(14.7, 100%, 56.1%)

HSV / HSBhsv(14.7, 87.8%, 100%)

CMYK0%, 66.3%, 87.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,733,727

CSS custom property--colour: #FF561F;

Brightness & contrast

Relative luminance0.28015WCAG 2.x, 0 is black and 1 is white

Perceived brightness154.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.6:1

Contrast with white3.18:1WCAG normal text: Fail

Contrast with black6.6:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#00A9E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#887812no red cones; affects about 1% of men; ΔE 67.9 from the original

Deuteranopia#B29E11no green cones; the most common form, about 1% of men; ΔE 68.1 from the original

Tritanopia#FF1A4Cno blue cones; rare, and affects men and women equally; ΔE 33.1 from the original

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

Contrast with white, large text3.18:1WCAG large text: AA

Contrast with black, large text6.6:1WCAG large text: AAA

Named colours

Orange red · ΔE 9 Tomato · ΔE 16.8 Red · ΔE 19.8 Coral · ΔE 23.6 Chocolate · ΔE 25.9 Dark orange · ΔE 29.9

Nearest named CSS colourOrange red (#FF4500)ΔE 8.96, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1FC8FF

Analogous#FF1F58, #FFC61F

Triadic#1FFF56, #561FFF

Split complementary#1FFFC6, #1F58FF

Tetradic#58FF1F, #1FC8FF, #C61FFF

Tints, shades & saturation

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

Lighter +40%#FFF0EB

Lighter +30%#FFC9B8

Lighter +20%#FFA385

Lighter +10%#FF7C52

Darker −10%#EB3A00

Darker −20%#B82D00

Darker −30%#852100

Darker −40%#521400

More saturated +25%#FF561F

Less saturated −25%#E3643B

Channel breakdown

R255

G86

B31

Red255 (100%)

Green86 (33.7%)

Blue31 (12.2%)

Hue14.73°

Saturation (HSL)100%

Lightness56.08%

Dominant channelRed

Hex per channelR FF · G 56 · B 1F

Keep nerding

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

#FF561F

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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