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Recognised as Colour

#A4400D

  • #A4400D
  • Orange
  • Dark
  • Nearest: Saddle brown

#A4400D is a orange with RGB values 164, 64, 13 and HSL 20°, 85%, 35%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Saddle brown.

Colour values

#A4400D#A4400D
HEX#A4400D
RGBrgb(164, 64, 13)
RGB (0–1)0.6431, 0.251, 0.051
RGB percentages64.3%, 25.1%, 5.1%
HSLhsl(20.3, 85.3%, 34.7%)
HSV / HSBhsv(20.3, 92.1%, 64.3%)
CMYK0%, 61%, 92.1%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,764,301
CSS custom property--colour: #A4400D;

Brightness & contrast

Relative luminance0.11588WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.33:1
Contrast with white6.33:1WCAG normal text: AA
Contrast with black3.32:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#5BBFF2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D5101no red cones; affects about 1% of men; ΔE 43.1 from the original
Deuteranopia#766806no green cones; the most common form, about 1% of men; ΔE 43.5 from the original
Tritanopia#B52637no blue cones; rare, and affects men and women equally; ΔE 27 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.33:1WCAG large text: AAA
Contrast with black, large text3.32:1WCAG large text: AA

Named colours

Saddle brown · ΔE 14.6Sienna · ΔE 15.7Chocolate · ΔE 18.1Dark red · ΔE 18.3Firebrick · ΔE 19.5Maroon · ΔE 19.8
Nearest named CSS colourSaddle brown (#8B4513)ΔE 14.55, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D71A4
Analogous#A40D25, #A48B0D
Triadic#0DA440, #400DA4
Split complementary#0DA48B, #0D26A4
Tetradic#26A40D, #0D71A4, #8C0DA4

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F6AD87
Lighter +30%#F28C58
Lighter +20%#EE6C29
Lighter +10%#D35211
Darker −10%#752E09
Darker −20%#451B06
Darker −30%#160902
Darker −40%#000000
More saturated +25%#B13C00
Less saturated −25%#8E4723

Channel breakdown

R164
G64
B13
Red164 (64.3%)
Green64 (25.1%)
Blue13 (5.1%)
Hue20.26°
Saturation (HSL)85.31%
Lightness34.71%
Dominant channelRed
Hex per channelR A4 · G 40 · B 0D

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Every value on this page was computed from “a4400d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.