Recognised as Colour
#AC190D
- #AC190D
- Red
- Dark
- Nearest: Firebrick
#AC190D is a red with RGB values 172, 25, 13 and HSL 5°, 86%, 36%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#AC190D#AC190D
HEX#AC190D
RGBrgb(172, 25, 13)
RGB (0–1)0.6745, 0.098, 0.051
RGB percentages67.5%, 9.8%, 5.1%
HSLhsl(4.5, 85.9%, 36.3%)
HSV / HSBhsv(4.5, 92.4%, 67.5%)
CMYK0%, 85.5%, 92.4%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,278,605
CSS custom property--colour: #AC190D;
Brightness & contrast
Relative luminance0.09495WCAG 2.x, 0 is black and 1 is white
Perceived brightness96.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.24:1
Contrast with white7.24:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#53E6F2
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.24:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0DA0AC
Analogous#AC0D51, #AC690D
Triadic#0DAC19, #190DAC
Split complementary#0DAC68, #0D51AC
Tetradic#50AC0D, #0DA0AC, #680DAC
Tints, shades & saturation
Channel breakdown
R172
G25
B13
Red172 (67.5%)
Green25 (9.8%)
Blue13 (5.1%)
Hue4.53°
Saturation (HSL)85.95%
Lightness36.27%
Dominant channelRed
Hex per channelR AC · G 19 · B 0D
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page