Recognised as Colour
#A51029
- #A51029
- Red
- Dark
- Nearest: Brown
#A51029 is a red with RGB values 165, 16, 41 and HSL 350°, 82%, 35%. It is a dark colour, so white text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Brown.
Colour values
#A51029#A51029
HEX#A51029
RGBrgb(165, 16, 41)
RGB (0–1)0.6471, 0.0627, 0.1608
RGB percentages64.7%, 6.3%, 16.1%
HSLhsl(349.9, 82.3%, 35.5%)
HSV / HSBhsv(349.9, 90.3%, 64.7%)
CMYK0%, 90.3%, 75.2%, 35.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,817,577
CSS custom property--colour: #A51029;
Brightness & contrast
Relative luminance0.0853WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.76:1
Contrast with white7.76:1WCAG normal text: AAA
Contrast with black2.71:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#5AEFD6
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.76:1WCAG large text: AAA
Contrast with black, large text2.71:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10A58C
Analogous#A51073, #A54210
Triadic#29A510, #1029A5
Split complementary#10A542, #1073A5
Tetradic#74A510, #10A58C, #4210A5
Tints, shades & saturation
Channel breakdown
R165
G16
B41
Red165 (64.7%)
Green16 (6.3%)
Blue41 (16.1%)
Hue349.93°
Saturation (HSL)82.32%
Lightness35.49%
Dominant channelRed
Hex per channelR A5 · G 10 · B 29
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