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Colour

#551F00

  • #551F00
  • Orange
  • Dark
  • Nearest: Saddle brown

#551F00 is a orange with RGB values 85, 31, 0 and HSL 22°, 100%, 17%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#551F00#551F00
HEX#551F00
RGBrgb(85, 31, 0)
RGB (0–1)0.3333, 0.1216, 0
RGB percentages33.3%, 12.2%, 0%
HSLhsl(21.9, 100%, 16.7%)
HSV / HSBhsv(21.9, 100%, 33.3%)
CMYK0%, 63.5%, 100%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,578,496
CSS custom property--colour: #551F00;

Brightness & contrast

Relative luminance0.02911WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.27:1
Contrast with white13.27:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#AAE0FF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F2800no red cones; affects about 1% of men; ΔE 26.3 from the original
Deuteranopia#3C3400no green cones; the most common form, about 1% of men; ΔE 26.2 from the original
Tritanopia#5E1119no blue cones; rare, and affects men and women equally; ΔE 16.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.27:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 21.6Sienna · ΔE 25.7Maroon · ΔE 26.8Dark red · ΔE 31.3Brown · ΔE 31.8Firebrick · ΔE 38.8
Nearest named CSS colourSaddle brown (#8B4513)ΔE 21.6, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#003655
Analogous#55000C, #554900
Triadic#00551F, #1F0055
Split complementary#00554A, #000B55
Tetradic#0C5500, #003655, #490055

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FF7322
Lighter +30%#EE5700
Lighter +20%#BB4400
Lighter +10%#883200
Darker −10%#220C00
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#551F00
Less saturated −25%#4A220B

Channel breakdown

R85
G31
B0
Red85 (33.3%)
Green31 (12.2%)
Blue0 (0%)
Hue21.88°
Saturation (HSL)100%
Lightness16.67%
Dominant channelRed
Hex per channelR 55 · G 1F · B 00

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Every value on this page was computed from “551f00” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.