Colour
#421F2B
- #421F2B
- Red
- Dark
- Nearest: Black
#421F2B is a red with RGB values 66, 31, 43 and HSL 339°, 36%, 19%. It is a dark colour, so white text on it reaches 14.4:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#421F2B#421F2B
HEX#421F2B
RGBrgb(66, 31, 43)
RGB (0–1)0.2588, 0.1216, 0.1686
RGB percentages25.9%, 12.2%, 16.9%
HSLhsl(339.4, 36.1%, 19%)
HSV / HSBhsv(339.4, 53%, 25.9%)
CMYK0%, 53%, 34.8%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,333,355
CSS custom property--colour: #421F2B;
Brightness & contrast
Relative luminance0.02313WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.36:1
Contrast with white14.36:1WCAG normal text: AAA
Contrast with black1.46:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#BDE0D4
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.36:1WCAG large text: AAA
Contrast with black, large text1.46:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1F4236
Analogous#421F3D, #42251F
Triadic#2B421F, #1F2B42
Split complementary#1F4225, #1F3D42
Tetradic#3D421F, #1F4236, #251F42
Tints, shades & saturation
Channel breakdown
R66
G31
B43
Red66 (25.9%)
Green31 (12.2%)
Blue43 (16.9%)
Hue339.43°
Saturation (HSL)36.08%
Lightness19.02%
Dominant channelRed
Hex per channelR 42 · G 1F · B 2B
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