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Recognised as Colour

#FD2903

  • #FD2903
  • Red
  • Dark
  • Nearest: Red

#FD2903 is a red with RGB values 253, 41, 3 and HSL 9°, 98%, 50%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FD2903#FD2903
HEX#FD2903
RGBrgb(253, 41, 3)
RGB (0–1)0.9922, 0.1608, 0.0118
RGB percentages99.2%, 16.1%, 1.2%
HSLhsl(9.1, 98.4%, 50.2%)
HSV / HSBhsv(9.1, 98.8%, 99.2%)
CMYK0%, 83.8%, 98.8%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,591,107
CSS custom property--colour: #FD2903;

Brightness & contrast

Relative luminance0.22475WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.5:1
Contrast with white3.82:1WCAG normal text: Fail
Contrast with black5.5:1WCAG normal text: AA
Greyscale equivalent#535353
Inverted#02D6FC

Colour vision & accessibility

Protanopia#736500no red cones; affects about 1% of men; ΔE 81.6 from the original
Deuteranopia#A69300no green cones; the most common form, about 1% of men; ΔE 80.6 from the original
Tritanopia#FF0027no blue cones; rare, and affects men and women equally; ΔE 14.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.82:1WCAG large text: AA
Contrast with black, large text5.5:1WCAG large text: AAA

Named colours

Nearest named CSS colourRed (#FF0000)ΔE 5.52, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#03D7FD
Analogous#FD035A, #FDA603
Triadic#03FD29, #2903FD
Split complementary#03FDA6, #035AFD
Tetradic#5AFD03, #03D7FD, #A603FD

Tints, shades & saturation

Lighter +40%#FFD5CD
Lighter +30%#FEAA9B
Lighter +20%#FE7F68
Lighter +10%#FD5436
Darker −10%#CB2002
Darker −20%#991801
Darker −30%#661001
Darker −40%#340800
More saturated +25%#FF2801
Less saturated −25%#DD3F23

Channel breakdown

R253
G41
B3
Red253 (99.2%)
Green41 (16.1%)
Blue3 (1.2%)
Hue9.12°
Saturation (HSL)98.43%
Lightness50.2%
Dominant channelRed
Hex per channelR FD · G 29 · B 03

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Every value on this page was computed from “fd2903” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.