Recognised as Colour
#901A01
- #901A01
- Red
- Dark
- Nearest: Dark red
#901A01 is a red with RGB values 144, 26, 1 and HSL 10°, 99%, 28%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark red.
Colour values
#901A01#901A01
HEX#901A01
RGBrgb(144, 26, 1)
RGB (0–1)0.5647, 0.102, 0.0039
RGB percentages56.5%, 10.2%, 0.4%
HSLhsl(10.5, 98.6%, 28.4%)
HSV / HSBhsv(10.5, 99.3%, 56.5%)
CMYK0%, 81.9%, 99.3%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,443,841
CSS custom property--colour: #901A01;
Brightness & contrast
Relative luminance0.0667WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9:1
Contrast with white9:1WCAG normal text: AAA
Contrast with black2.33:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#6FE5FE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9:1WCAG large text: AAA
Contrast with black, large text2.33:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#017790
Analogous#90012F, #906201
Triadic#01901A, #1A0190
Split complementary#019062, #012F90
Tetradic#2F9001, #017790, #620190
Tints, shades & saturation
Channel breakdown
R144
G26
B1
Red144 (56.5%)
Green26 (10.2%)
Blue1 (0.4%)
Hue10.49°
Saturation (HSL)98.62%
Lightness28.43%
Dominant channelRed
Hex per channelR 90 · G 1A · B 01
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