Colour
#511F00
- #511F00
- Orange
- Dark
- Nearest: Saddle brown
#511F00 is a orange with RGB values 81, 31, 0 and HSL 23°, 100%, 16%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.
Colour values
#511F00#511F00
HEX#511F00
RGBrgb(81, 31, 0)
RGB (0–1)0.3176, 0.1216, 0
RGB percentages31.8%, 12.2%, 0%
HSLhsl(23, 100%, 15.9%)
HSV / HSBhsv(23, 100%, 31.8%)
CMYK0%, 61.7%, 100%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,316,352
CSS custom property--colour: #511F00;
Brightness & contrast
Relative luminance0.02729WCAG 2.x, 0 is black and 1 is white
Perceived brightness50.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.58:1
Contrast with white13.58:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#AEE0FF
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.58:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#003251
Analogous#510009, #514700
Triadic#00511F, #1F0051
Split complementary#005147, #000A51
Tetradic#0A5100, #003251, #480051
Tints, shades & saturation
Channel breakdown
R81
G31
B0
Red81 (31.8%)
Green31 (12.2%)
Blue0 (0%)
Hue22.96°
Saturation (HSL)100%
Lightness15.88%
Dominant channelRed
Hex per channelR 51 · G 1F · B 00
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