Colour

#FF5611

#FF5611
Orange
Dark
Nearest: Orange red

#FF5611 is a orange with RGB values 255, 86, 17 and HSL 17°, 100%, 53%. 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

#FF5611#FF5611

HEX#FF5611

RGBrgb(255, 86, 17)

RGB (0–1)1, 0.3373, 0.0667

RGB percentages100%, 33.7%, 6.7%

HSLhsl(17.4, 100%, 53.3%)

HSV / HSBhsv(17.4, 93.3%, 100%)

CMYK0%, 66.3%, 93.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,733,713

CSS custom property--colour: #FF5611;

Brightness & contrast

Relative luminance0.27956WCAG 2.x, 0 is black and 1 is white

Perceived brightness154.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.59:1

Contrast with white3.19:1WCAG normal text: Fail

Contrast with black6.59:1WCAG normal text: AA

Greyscale equivalent#757575

Inverted#00A9EE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#897800no red cones; affects about 1% of men; ΔE 67.6 from the original

Deuteranopia#B29E00no green cones; the most common form, about 1% of men; ΔE 68.1 from the original

Tritanopia#FF184Bno blue cones; rare, and affects men and women equally; ΔE 36.5 from the original

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

Contrast with white, large text3.19:1WCAG large text: AA

Contrast with black, large text6.59:1WCAG large text: AAA

Named colours

Orange red · ΔE 6.8 Red · ΔE 19.5 Tomato · ΔE 20.8 Coral · ΔE 26.4 Chocolate · ΔE 27 Dark orange · ΔE 28.2

Nearest named CSS colourOrange red (#FF4500)ΔE 6.78, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#11BAFF

Analogous#FF1143, #FFCD11

Triadic#11FF56, #5611FF

Split complementary#11FFCD, #1143FF

Tetradic#43FF11, #11BAFF, #CD11FF

Tints, shades & saturation

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

Lighter +40%#FFE7DD

Lighter +30%#FFC3AA

Lighter +20%#FF9E77

Lighter +10%#FF7A44

Darker −10%#DD4000

Darker −20%#AA3100

Darker −30%#772300

Darker −40%#441400

More saturated +25%#FF5611

Less saturated −25%#E1632F

Channel breakdown

R255

G86

B17

Red255 (100%)

Green86 (33.7%)

Blue17 (6.7%)

Hue17.39°

Saturation (HSL)100%

Lightness53.33%

Dominant channelRed

Hex per channelR FF · G 56 · B 11

Keep nerding

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#FF5611

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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