Recognised as Colour
#371C28
- #371C28
- Red
- Dark
- Nearest: Black
#371C28 is a red with RGB values 55, 28, 40 and HSL 333°, 33%, 16%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#371C28#371C28
HEX#371C28
RGBrgb(55, 28, 40)
RGB (0–1)0.2157, 0.1098, 0.1569
RGB percentages21.6%, 11%, 15.7%
HSLhsl(333.3, 32.5%, 16.3%)
HSV / HSBhsv(333.3, 49.1%, 21.6%)
CMYK0%, 49.1%, 27.3%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,611,688
CSS custom property--colour: #371C28;
Brightness & contrast
Relative luminance0.01796WCAG 2.x, 0 is black and 1 is white
Perceived brightness39.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.45:1
Contrast with white15.45:1WCAG normal text: AAA
Contrast with black1.36:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#C8E3D7
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.45:1WCAG large text: AAA
Contrast with black, large text1.36:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1C372B
Analogous#371C36, #371D1C
Triadic#28371C, #1C2837
Split complementary#1C371D, #1C3637
Tetradic#36371C, #1C372B, #1D1C37
Tints, shades & saturation
Channel breakdown
R55
G28
B40
Red55 (21.6%)
Green28 (11%)
Blue40 (15.7%)
Hue333.33°
Saturation (HSL)32.53%
Lightness16.27%
Dominant channelRed
Hex per channelR 37 · G 1C · B 28
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