Colour
#421C28
- #421C28
- Red
- Dark
- Nearest: Black
#421C28 is a red with RGB values 66, 28, 40 and HSL 341°, 40%, 18%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#421C28#421C28
HEX#421C28
RGBrgb(66, 28, 40)
RGB (0–1)0.2588, 0.1098, 0.1569
RGB percentages25.9%, 11%, 15.7%
HSLhsl(341.1, 40.4%, 18.4%)
HSV / HSBhsv(341.1, 57.6%, 25.9%)
CMYK0%, 57.6%, 39.4%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,332,584
CSS custom property--colour: #421C28;
Brightness & contrast
Relative luminance0.02142WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.7:1
Contrast with white14.7:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#BDE3D7
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.7:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1C4236
Analogous#421C3B, #42231C
Triadic#28421C, #1C2842
Split complementary#1C4223, #1C3B42
Tetradic#3B421C, #1C4236, #231C42
Tints, shades & saturation
Channel breakdown
R66
G28
B40
Red66 (25.9%)
Green28 (11%)
Blue40 (15.7%)
Hue341.05°
Saturation (HSL)40.43%
Lightness18.43%
Dominant channelRed
Hex per channelR 42 · G 1C · B 28
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