Recognised as Colour

#AD331E

#AD331E
Red
Dark
Nearest: Firebrick

#AD331E is a red with RGB values 173, 51, 30 and HSL 9°, 70%, 40%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#AD331E#AD331E

HEX#AD331E

RGBrgb(173, 51, 30)

RGB (0–1)0.6784, 0.2, 0.1176

RGB percentages67.8%, 20%, 11.8%

HSLhsl(8.8, 70.4%, 39.8%)

HSV / HSBhsv(8.8, 82.7%, 67.8%)

CMYK0%, 70.5%, 82.7%, 32.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,350,814

CSS custom property--colour: #AD331E;

Brightness & contrast

Relative luminance0.11346WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.42:1

Contrast with white6.42:1WCAG normal text: AA

Contrast with black3.27:1WCAG normal text: Fail

Greyscale equivalent#4B4B4B

Inverted#52CCE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#574D1Ano red cones; affects about 1% of men; ΔE 52.7 from the original

Deuteranopia#756918no green cones; the most common form, about 1% of men; ΔE 53.5 from the original

Tritanopia#BF002Fno blue cones; rare, and affects men and women equally; ΔE 19 from the original

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

Contrast with white, large text6.42:1WCAG large text: AAA

Contrast with black, large text3.27:1WCAG large text: AA

Named colours

Firebrick · ΔE 8 Brown · ΔE 10.3 Dark red · ΔE 12.4 Maroon · ΔE 14.8 Sienna · ΔE 20.1 Saddle brown · ΔE 22.2

Nearest named CSS colourFirebrick (#B22222)ΔE 8.01, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1E98AD

Analogous#AD1E51, #AD7A1E

Triadic#1EAD33, #331EAD

Split complementary#1EAD7A, #1E51AD

Tetradic#51AD1E, #1E98AD, #7A1EAD

Tints, shades & saturation

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

Lighter +40%#F0B2A7

Lighter +30%#E88C7C

Lighter +20%#E16650

Lighter +10%#D84026

Darker −10%#822616

Darker −20%#56190F

Darker −30%#2B0D07

Darker −40%#000000

More saturated +25%#C62105

Less saturated −25%#944537

Channel breakdown

R173

G51

B30

Red173 (67.8%)

Green51 (20%)

Blue30 (11.8%)

Hue8.81°

Saturation (HSL)70.44%

Lightness39.8%

Dominant channelRed

Hex per channelR AD · G 33 · B 1E

Keep nerding

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

#AD331E

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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