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Recognised as Colour

#A4640D

  • #A4640D
  • Orange
  • Dark
  • Nearest: Peru

#A4640D is a orange with RGB values 164, 100, 13 and HSL 35°, 85%, 35%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Peru.

Colour values

#A4640D#A4640D
HEX#A4640D
RGBrgb(164, 100, 13)
RGB (0–1)0.6431, 0.3922, 0.051
RGB percentages64.3%, 39.2%, 5.1%
HSLhsl(34.6, 85.3%, 34.7%)
HSV / HSBhsv(34.6, 92.1%, 64.3%)
CMYK0%, 39%, 92.1%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,773,517
CSS custom property--colour: #A4640D;

Brightness & contrast

Relative luminance0.17036WCAG 2.x, 0 is black and 1 is white
Perceived brightness118 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.76:1
Contrast with white4.76:1WCAG normal text: AA
Contrast with black4.41:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#5B9BF2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#796A00no red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#887910no green cones; the most common form, about 1% of men; ΔE 25 from the original
Tritanopia#B45555no blue cones; rare, and affects men and women equally; ΔE 39.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.76:1WCAG large text: AAA
Contrast with black, large text4.41:1WCAG large text: AA

Named colours

Peru · ΔE 14.5Saddle brown · ΔE 17.5Dark goldenrod · ΔE 17.7Chocolate · ΔE 19.1Sienna · ΔE 20.4Sandy brown · ΔE 26.6
Nearest named CSS colourPeru (#CD853F)ΔE 14.5, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D4DA4
Analogous#A4180D, #98A40D
Triadic#0DA464, #640DA4
Split complementary#0D98A4, #190DA4
Tetradic#0DA419, #0D4DA4, #A40D98

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F6C787
Lighter +30%#F2B158
Lighter +20%#EE9B29
Lighter +10%#D38111
Darker −10%#754709
Darker −20%#452A06
Darker −30%#160E02
Darker −40%#000000
More saturated +25%#B16600
Less saturated −25%#8E6123

Channel breakdown

R164
G100
B13
Red164 (64.3%)
Green100 (39.2%)
Blue13 (5.1%)
Hue34.57°
Saturation (HSL)85.31%
Lightness34.71%
Dominant channelRed
Hex per channelR A4 · G 64 · B 0D

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Every value on this page was computed from “a4640d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.