Colour
#0A0301
- #0A0301
- Red
- Dark
- Nearest: Black
#0A0301 is a red with RGB values 10, 3, 1 and HSL 13°, 82%, 2%. It is a dark colour, so white text on it reaches 20.5:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#0A0301#0A0301
HEX#0A0301
RGBrgb(10, 3, 1)
RGB (0–1)0.0392, 0.0118, 0.0039
RGB percentages3.9%, 1.2%, 0.4%
HSLhsl(13.3, 81.8%, 2.2%)
HSV / HSBhsv(13.3, 90%, 3.9%)
CMYK0%, 70%, 90%, 96.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer656,129
CSS custom property--colour: #0A0301;
Brightness & contrast
Relative luminance0.00132WCAG 2.x, 0 is black and 1 is white
Perceived brightness5.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.46:1
Contrast with white20.46:1WCAG normal text: AAA
Contrast with black1.03:1WCAG normal text: Fail
Greyscale equivalent#040404
Inverted#F5FCFE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.46:1WCAG large text: AAA
Contrast with black, large text1.03:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#01080A
Analogous#0A0103, #0A0701
Triadic#010A03, #03010A
Split complementary#010A08, #01030A
Tetradic#040A01, #01080A, #07010A
Tints, shades & saturation
Channel breakdown
R10
G3
B1
Red10 (3.9%)
Green3 (1.2%)
Blue1 (0.4%)
Hue13.33°
Saturation (HSL)81.82%
Lightness2.16%
Dominant channelRed
Hex per channelR 0A · G 03 · B 01
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