Colour

#AD2700

#AD2700
Red
Dark
Nearest: Firebrick

#AD2700 is a red with RGB values 173, 39, 0 and HSL 14°, 100%, 34%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AD2700#AD2700

HEX#AD2700

RGBrgb(173, 39, 0)

RGB (0–1)0.6784, 0.1529, 0

RGB percentages67.8%, 15.3%, 0%

HSLhsl(13.5, 100%, 33.9%)

HSV / HSBhsv(13.5, 100%, 67.8%)

CMYK0%, 77.5%, 100%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,347,712

CSS custom property--colour: #AD2700;

Brightness & contrast

Relative luminance0.10335WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.85:1

Contrast with white6.85:1WCAG normal text: AA

Contrast with black3.07:1WCAG normal text: Fail

Greyscale equivalent#414141

Inverted#52D8FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524700no red cones; affects about 1% of men; ΔE 57.1 from the original

Deuteranopia#736500no green cones; the most common form, about 1% of men; ΔE 56.5 from the original

Tritanopia#BF0022no blue cones; rare, and affects men and women equally; ΔE 17.5 from the original

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

Contrast with white, large text6.85:1WCAG large text: AAA

Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Firebrick · ΔE 14.1 Dark red · ΔE 14.5 Maroon · ΔE 19 Brown · ΔE 20.9 Chocolate · ΔE 23.8 Tomato · ΔE 24.9

Nearest named CSS colourFirebrick (#B22222)ΔE 14.15, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0086AD

Analogous#AD0030, #AD7D00

Triadic#00AD27, #2700AD

Split complementary#00AD7E, #002FAD

Tetradic#30AD00, #0086AD, #7D00AD

Tints, shades & saturation

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

Lighter +40%#FF987A

Lighter +30%#FF7047

Lighter +20%#FF4914

Lighter +10%#E03200

Darker −10%#7A1C00

Darker −20%#471000

Darker −30%#140500

Darker −40%#000000

More saturated +25%#AD2700

Less saturated −25%#973316

Channel breakdown

R173

G39

Red173 (67.8%)

Green39 (15.3%)

Blue0 (0%)

Hue13.53°

Saturation (HSL)100%

Lightness33.92%

Dominant channelRed

Hex per channelR AD · G 27 · B 00

Keep nerding

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#AD2700

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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