Colour

#A33F0A

#A33F0A
Orange
Dark
Nearest: Saddle brown

#A33F0A is a orange with RGB values 163, 63, 10 and HSL 21°, 88%, 34%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Saddle brown.

Colour values

#A33F0A#A33F0A

HEX#A33F0A

RGBrgb(163, 63, 10)

RGB (0–1)0.6392, 0.2471, 0.0392

RGB percentages63.9%, 24.7%, 3.9%

HSLhsl(20.8, 88.4%, 33.9%)

HSV / HSBhsv(20.8, 93.9%, 63.9%)

CMYK0%, 61.3%, 93.9%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,698,506

CSS custom property--colour: #A33F0A;

Brightness & contrast

Relative luminance0.11363WCAG 2.x, 0 is black and 1 is white

Perceived brightness101.4 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#505050

Inverted#5CC0F5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5100no red cones; affects about 1% of men; ΔE 43.7 from the original

Deuteranopia#756702no green cones; the most common form, about 1% of men; ΔE 43.5 from the original

Tritanopia#B42436no blue cones; rare, and affects men and women equally; ΔE 27.5 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

Saddle brown · ΔE 14.8 Sienna · ΔE 16.2 Chocolate · ΔE 18.2 Dark red · ΔE 18.2 Firebrick · ΔE 19.7 Maroon · ΔE 19.8

Nearest named CSS colourSaddle brown (#8B4513)ΔE 14.79, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0A6EA3

Analogous#A30A21, #A38C0A

Triadic#0AA33F, #3F0AA3

Split complementary#0AA38B, #0A22A3

Tetradic#22A30A, #0A6EA3, #8B0AA3

Tints, shades & saturation

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

Lighter +40%#F7AA82

Lighter +30%#F48A52

Lighter +20%#F16A22

Lighter +10%#D3520D

Darker −10%#732C07

Darker −20%#431A04

Darker −30%#130701

Darker −40%#000000

More saturated +25%#AD3C00

Less saturated −25%#8D4620

Channel breakdown

R163

G63

B10

Red163 (63.9%)

Green63 (24.7%)

Blue10 (3.9%)

Hue20.78°

Saturation (HSL)88.44%

Lightness33.92%

Dominant channelRed

Hex per channelR A3 · G 3F · B 0A

Keep nerding

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

#A33F0A

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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