Colour
#1A0001
- #1A0001
- Red
- Dark
- Nearest: Black
#1A0001 is a red with RGB values 26, 0, 1 and HSL 358°, 100%, 5%. It is a dark colour, so white text on it reaches 20.1:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#1A0001#1A0001
HEX#1A0001
RGBrgb(26, 0, 1)
RGB (0–1)0.102, 0, 0.0039
RGB percentages10.2%, 0%, 0.4%
HSLhsl(357.7, 100%, 5.1%)
HSV / HSBhsv(357.7, 100%, 10.2%)
CMYK0%, 100%, 96.2%, 89.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,703,937
CSS custom property--colour: #1A0001;
Brightness & contrast
Relative luminance0.00222WCAG 2.x, 0 is black and 1 is white
Perceived brightness14.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.11:1
Contrast with white20.11:1WCAG normal text: AAA
Contrast with black1.04:1WCAG normal text: Fail
Greyscale equivalent#060606
Inverted#E5FFFE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.11:1WCAG large text: AAA
Contrast with black, large text1.04:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#001A19
Analogous#1A000E, #1A0C00
Triadic#011A00, #00011A
Split complementary#001A0C, #000E1A
Tetradic#0E1A00, #001A19, #0C001A
Tints, shades & saturation
Channel breakdown
R26
G0
B1
Red26 (10.2%)
Green0 (0%)
Blue1 (0.4%)
Hue357.69°
Saturation (HSL)100%
Lightness5.1%
Dominant channelRed
Hex per channelR 1A · G 00 · B 01
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