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Recognised as Colour

#FF3B09

  • #FF3B09
  • Red
  • Dark
  • Nearest: Orange red

#FF3B09 is a red with RGB values 255, 59, 9 and HSL 12°, 100%, 52%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF3B09#FF3B09
HEX#FF3B09
RGBrgb(255, 59, 9)
RGB (0–1)1, 0.2314, 0.0353
RGB percentages100%, 23.1%, 3.5%
HSLhsl(12.2, 100%, 51.8%)
HSV / HSBhsv(12.2, 96.5%, 100%)
CMYK0%, 76.9%, 96.5%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,726,793
CSS custom property--colour: #FF3B09;

Brightness & contrast

Relative luminance0.24408WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.88:1
Contrast with white3.57:1WCAG normal text: Fail
Contrast with black5.88:1WCAG normal text: AA
Greyscale equivalent#616161
Inverted#00C4F6

Colour vision & accessibility

Protanopia#7B6C00no red cones; affects about 1% of men; ΔE 77.3 from the original
Deuteranopia#AA9700no green cones; the most common form, about 1% of men; ΔE 77.1 from the original
Tritanopia#FF0035no blue cones; rare, and affects men and women equally; ΔE 22.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.57:1WCAG large text: AA
Contrast with black, large text5.88:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 4.08, a close match
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#09CDFF
Analogous#FF0952, #FFB609
Triadic#09FF3B, #3B09FF
Split complementary#09FFB6, #0952FF
Tetradic#52FF09, #09CDFF, #B609FF

Tints, shades & saturation

Lighter +40%#FFDED5
Lighter +30%#FFB5A2
Lighter +20%#FF8C6F
Lighter +10%#FF643C
Darker −10%#D52B00
Darker −20%#A22100
Darker −30%#6F1700
Darker −40%#3C0C00
More saturated +25%#FF3B09
Less saturated −25%#E04D28

Channel breakdown

R255
G59
B9
Red255 (100%)
Green59 (23.1%)
Blue9 (3.5%)
Hue12.2°
Saturation (HSL)100%
Lightness51.76%
Dominant channelRed
Hex per channelR FF · G 3B · B 09

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Every value on this page was computed from “ff3b09” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.