Recognised as Colour

#D8180C

#D8180C
Red
Dark
Nearest: Orange red

#D8180C is a red with RGB values 216, 24, 12 and HSL 4°, 89%, 45%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#D8180C#D8180C

HEX#D8180C

RGBrgb(216, 24, 12)

RGB (0–1)0.8471, 0.0941, 0.0471

RGB percentages84.7%, 9.4%, 4.7%

HSLhsl(3.5, 89.5%, 44.7%)

HSV / HSBhsv(3.5, 94.4%, 84.7%)

CMYK0%, 88.9%, 94.4%, 15.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,161,932

CSS custom property--colour: #D8180C;

Brightness & contrast

Relative luminance0.15279WCAG 2.x, 0 is black and 1 is white

Perceived brightness119.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.18:1

Contrast with white5.18:1WCAG normal text: AA

Contrast with black4.06:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#27E7F3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5F5303no red cones; affects about 1% of men; ΔE 73.7 from the original

Deuteranopia#8B7B00no green cones; the most common form, about 1% of men; ΔE 73.4 from the original

Tritanopia#EF001Bno blue cones; rare, and affects men and women equally; ΔE 9.3 from the original

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

Contrast with white, large text5.18:1WCAG large text: AAA

Contrast with black, large text4.06:1WCAG large text: AA

Named colours

Orange red · ΔE 17.3 Red · ΔE 17.8 Tomato · ΔE 21.5 Crimson · ΔE 22.7 Firebrick · ΔE 23.2 Dark red · ΔE 28.9

Nearest named CSS colourOrange red (#FF4500)ΔE 17.28, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0CCCD8

Analogous#D80C66, #D87E0C

Triadic#0CD818, #180CD8

Split complementary#0CD87E, #0C66D8

Tetradic#66D80C, #0CCCD8, #7E0CD8

Tints, shades & saturation

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

Lighter +40%#FBB9B5

Lighter +30%#F88C85

Lighter +20%#F65E54

Lighter +10%#F33024

Darker −10%#A81309

Darker −20%#770D07

Darker −30%#470804

Darker −40%#170301

More saturated +25%#E40D00

Less saturated −25%#BC3128

Channel breakdown

R216

G24

B12

Red216 (84.7%)

Green24 (9.4%)

Blue12 (4.7%)

Hue3.53°

Saturation (HSL)89.47%

Lightness44.71%

Dominant channelRed

Hex per channelR D8 · G 18 · B 0C

Keep nerding

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

#D8180C

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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