Colour

#A43F17

#A43F17
Orange
Dark
Nearest: Sienna

#A43F17 is a orange with RGB values 164, 63, 23 and HSL 17°, 75%, 37%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#A43F17#A43F17

HEX#A43F17

RGBrgb(164, 63, 23)

RGB (0–1)0.6431, 0.2471, 0.0902

RGB percentages64.3%, 24.7%, 9%

HSLhsl(17, 75.4%, 36.7%)

HSV / HSBhsv(17, 86%, 64.3%)

CMYK0%, 61.6%, 86%, 35.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,764,055

CSS custom property--colour: #A43F17;

Brightness & contrast

Relative luminance0.11509WCAG 2.x, 0 is black and 1 is white

Perceived brightness102.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.36:1

Contrast with white6.36:1WCAG normal text: AA

Contrast with black3.3:1WCAG normal text: Fail

Greyscale equivalent#525252

Inverted#5BC0E8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5110no red cones; affects about 1% of men; ΔE 43.9 from the original

Deuteranopia#756812no green cones; the most common form, about 1% of men; ΔE 44.4 from the original

Tritanopia#B52537no blue cones; rare, and affects men and women equally; ΔE 23.9 from the original

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

Contrast with white, large text6.36:1WCAG large text: AAA

Contrast with black, large text3.3:1WCAG large text: AA

Named colours

Sienna · ΔE 13.5 Saddle brown · ΔE 13.9 Brown · ΔE 16.5 Dark red · ΔE 16.8 Firebrick · ΔE 17.2 Maroon · ΔE 17.8

Nearest named CSS colourSienna (#A0522D)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#177CA4

Analogous#A41736, #A48517

Triadic#17A43F, #3F17A4

Split complementary#17A486, #1736A4

Tetradic#36A417, #177CA4, #8517A4

Tints, shades & saturation

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

Lighter +40%#F0B097

Lighter +30%#EA8E6A

Lighter +20%#E46C3D

Lighter +10%#D1501D

Darker −10%#772E11

Darker −20%#4B1D0A

Darker −30%#1E0B04

Darker −40%#000000

More saturated +25%#BB3500

Less saturated −25%#8D492E

Channel breakdown

R164

G63

B23

Red164 (64.3%)

Green63 (24.7%)

Blue23 (9%)

Hue17.02°

Saturation (HSL)75.4%

Lightness36.67%

Dominant channelRed

Hex per channelR A4 · G 3F · B 17

Keep nerding

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

#A43F17

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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