Recognised as Colour
#FF0133
- #FF0133
- Red
- Dark
- Nearest: Crimson
#FF0133 is a red with RGB values 255, 1, 51 and HSL 348°, 100%, 50%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#FF0133#FF0133
HEX#FF0133
RGBrgb(255, 1, 51)
RGB (0–1)1, 0.0039, 0.2
RGB percentages100%, 0.4%, 20%
HSLhsl(348.2, 100%, 50.2%)
HSV / HSBhsv(348.2, 99.6%, 100%)
CMYK0%, 99.6%, 80%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,711,987
CSS custom property--colour: #FF0133;
Brightness & contrast
Relative luminance0.21521WCAG 2.x, 0 is black and 1 is white
Perceived brightness140.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.3:1
Contrast with white3.96:1WCAG normal text: Fail
Contrast with black5.3:1WCAG normal text: AA
Greyscale equivalent#3B3B3B
Inverted#00FECC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.96:1WCAG large text: AA
Contrast with black, large text5.3:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#01FFCD
Analogous#FF01B2, #FF4E01
Triadic#33FF01, #0133FF
Split complementary#01FF4E, #01B2FF
Tetradic#B2FF01, #01FFCD, #4E01FF
Tints, shades & saturation
Channel breakdown
R255
G1
B51
Red255 (100%)
Green1 (0.4%)
Blue51 (20%)
Hue348.19°
Saturation (HSL)100%
Lightness50.2%
Dominant channelRed
Hex per channelR FF · G 01 · B 33
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