Colour
#51403C
- #51403C
- Red
- Dark
- Nearest: Dim grey
#51403C is a red with RGB values 81, 64, 60 and HSL 11°, 15%, 28%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Dim grey.
Colour values
#51403C#51403C
HEX#51403C
RGBrgb(81, 64, 60)
RGB (0–1)0.3176, 0.251, 0.2353
RGB percentages31.8%, 25.1%, 23.5%
HSLhsl(11.4, 14.9%, 27.6%)
HSV / HSBhsv(11.4, 25.9%, 31.8%)
CMYK0%, 21%, 25.9%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,324,860
CSS custom property--colour: #51403C;
Brightness & contrast
Relative luminance0.05742WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.77:1
Contrast with white9.77:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#AEBFC3
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.77:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3C4D51
Analogous#513C43, #514B3C
Triadic#3C5140, #403C51
Split complementary#3C514B, #3C4351
Tetradic#43513C, #3C4D51, #4B3C51
Tints, shades & saturation
Channel breakdown
R81
G64
B60
Red81 (31.8%)
Green64 (25.1%)
Blue60 (23.5%)
Hue11.43°
Saturation (HSL)14.89%
Lightness27.65%
Dominant channelRed
Hex per channelR 51 · G 40 · B 3C
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