Recognised as Colour

#D81E05

#D81E05
Red
Dark
Nearest: Orange red

#D81E05 is a red with RGB values 216, 30, 5 and HSL 7°, 95%, 43%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#D81E05#D81E05

HEX#D81E05

RGBrgb(216, 30, 5)

RGB (0–1)0.8471, 0.1176, 0.0196

RGB percentages84.7%, 11.8%, 2%

HSLhsl(7.1, 95.5%, 43.3%)

HSV / HSBhsv(7.1, 97.7%, 84.7%)

CMYK0%, 86.1%, 97.7%, 15.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,163,461

CSS custom property--colour: #D81E05;

Brightness & contrast

Relative luminance0.15538WCAG 2.x, 0 is black and 1 is white

Perceived brightness120.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.11:1

Contrast with white5.11:1WCAG normal text: AA

Contrast with black4.11:1WCAG normal text: Fail

Greyscale equivalent#444444

Inverted#27E1FA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605400no red cones; affects about 1% of men; ΔE 72.9 from the original

Deuteranopia#8C7C00no green cones; the most common form, about 1% of men; ΔE 72.4 from the original

Tritanopia#EF001Eno blue cones; rare, and affects men and women equally; ΔE 11 from the original

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

Contrast with white, large text5.11:1WCAG large text: AAA

Contrast with black, large text4.11:1WCAG large text: AA

Named colours

Orange red · ΔE 15.5 Red · ΔE 17.2 Tomato · ΔE 21.8 Firebrick · ΔE 24.5 Crimson · ΔE 25 Dark red · ΔE 29.7

Nearest named CSS colourOrange red (#FF4500)ΔE 15.5, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#05BFD8

Analogous#D80555, #D88805

Triadic#05D81E, #1E05D8

Split complementary#05D887, #0556D8

Tetradic#55D805, #05BFD8, #8805D8

Tints, shades & saturation

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

Lighter +40%#FDB6AC

Lighter +30%#FC897A

Lighter +20%#FB5D48

Lighter +10%#FA3116

Darker −10%#A61704

Darker −20%#741003

Darker −30%#420902

Darker −40%#110200

More saturated +25%#DD1A00

Less saturated −25%#BC3321

Channel breakdown

R216

G30

Red216 (84.7%)

Green30 (11.8%)

Blue5 (2%)

Hue7.11°

Saturation (HSL)95.48%

Lightness43.33%

Dominant channelRed

Hex per channelR D8 · G 1E · B 05

Keep nerding

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

#D81E05

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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