Recognised as Colour
#370F19
- #370F19
- Red
- Dark
- Nearest: Black
#370F19 is a red with RGB values 55, 15, 25 and HSL 345°, 57%, 14%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#370F19#370F19
HEX#370F19
RGBrgb(55, 15, 25)
RGB (0–1)0.2157, 0.0588, 0.098
RGB percentages21.6%, 5.9%, 9.8%
HSLhsl(345, 57.1%, 13.7%)
HSV / HSBhsv(345, 72.7%, 21.6%)
CMYK0%, 72.7%, 54.5%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,608,345
CSS custom property--colour: #370F19;
Brightness & contrast
Relative luminance0.01224WCAG 2.x, 0 is black and 1 is white
Perceived brightness33.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.87:1
Contrast with white16.87:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#C8F0E6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.87:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0F372D
Analogous#370F2D, #37190F
Triadic#19370F, #0F1937
Split complementary#0F3719, #0F2D37
Tetradic#2D370F, #0F372D, #190F37
Tints, shades & saturation
Channel breakdown
R55
G15
B25
Red55 (21.6%)
Green15 (5.9%)
Blue25 (9.8%)
Hue345°
Saturation (HSL)57.14%
Lightness13.73%
Dominant channelRed
Hex per channelR 37 · G 0F · B 19
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