Recognised as Colour

#A33307

#A33307
Orange
Dark
Nearest: Dark red

#A33307 is a orange with RGB values 163, 51, 7 and HSL 17°, 92%, 33%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark red.

Colour values

#A33307#A33307

HEX#A33307

RGBrgb(163, 51, 7)

RGB (0–1)0.6392, 0.2, 0.0275

RGB percentages63.9%, 20%, 2.7%

HSLhsl(16.9, 91.8%, 33.3%)

HSV / HSBhsv(16.9, 95.7%, 63.9%)

CMYK0%, 68.7%, 95.7%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,695,431

CSS custom property--colour: #A33307;

Brightness & contrast

Relative luminance0.1017WCAG 2.x, 0 is black and 1 is white

Perceived brightness97.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.92:1

Contrast with white6.92:1WCAG normal text: AA

Contrast with black3.03:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#5CCCF8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#554A00no red cones; affects about 1% of men; ΔE 48.8 from the original

Deuteranopia#706300no green cones; the most common form, about 1% of men; ΔE 49.1 from the original

Tritanopia#B4082Cno blue cones; rare, and affects men and women equally; ΔE 24.1 from the original

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

Contrast with white, large text6.92:1WCAG large text: AAA

Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Dark red · ΔE 13.5 Firebrick · ΔE 15.1 Maroon · ΔE 16.2 Brown · ΔE 17.8 Saddle brown · ΔE 19.3 Sienna · ΔE 20.2

Nearest named CSS colourDark red (#8B0000)ΔE 13.51, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0777A3

Analogous#A30729, #A38107

Triadic#07A333, #3307A3

Split complementary#07A381, #0729A3

Tetradic#29A307, #0777A3, #8107A3

Tints, shades & saturation

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

Lighter +40%#F9A07D

Lighter +30%#F77C4C

Lighter +20%#F5581B

Lighter +10%#D44209

Darker −10%#722405

Darker −20%#411403

Darker −30%#100501

Darker −40%#000000

More saturated +25%#AA3000

Less saturated −25%#8E3C1C

Channel breakdown

R163

G51

Red163 (63.9%)

Green51 (20%)

Blue7 (2.7%)

Hue16.92°

Saturation (HSL)91.76%

Lightness33.33%

Dominant channelRed

Hex per channelR A3 · G 33 · B 07

Keep nerding

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

#A33307

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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