Colour
#A4220D
- #A4220D
- Red
- Dark
- Nearest: Dark red
#A4220D is a red with RGB values 164, 34, 13 and HSL 8°, 85%, 35%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark red.
Colour values
#A4220D#A4220D
HEX#A4220D
RGBrgb(164, 34, 13)
RGB (0–1)0.6431, 0.1333, 0.051
RGB percentages64.3%, 13.3%, 5.1%
HSLhsl(8.3, 85.3%, 34.7%)
HSV / HSBhsv(8.3, 92.1%, 64.3%)
CMYK0%, 79.3%, 92.1%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,756,621
CSS custom property--colour: #A4220D;
Brightness & contrast
Relative luminance0.09066WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.47:1
Contrast with white7.47:1WCAG normal text: AAA
Contrast with black2.81:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#5BDDF2
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.47:1WCAG large text: AAA
Contrast with black, large text2.81:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0D8FA4
Analogous#A40D44, #A46D0D
Triadic#0DA422, #220DA4
Split complementary#0DA46E, #0D44A4
Tetradic#44A40D, #0D8FA4, #6D0DA4
Tints, shades & saturation
Channel breakdown
R164
G34
B13
Red164 (64.3%)
Green34 (13.3%)
Blue13 (5.1%)
Hue8.34°
Saturation (HSL)85.31%
Lightness34.71%
Dominant channelRed
Hex per channelR A4 · G 22 · B 0D
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