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Recognised as Colour

#FF5F1D

  • #FF5F1D
  • Orange
  • Dark
  • Nearest: Orange red

#FF5F1D is a orange with RGB values 255, 95, 29 and HSL 18°, 100%, 56%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#FF5F1D#FF5F1D
HEX#FF5F1D
RGBrgb(255, 95, 29)
RGB (0–1)1, 0.3725, 0.1137
RGB percentages100%, 37.3%, 11.4%
HSLhsl(17.5, 100%, 55.7%)
HSV / HSBhsv(17.5, 88.6%, 100%)
CMYK0%, 62.7%, 88.6%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,736,029
CSS custom property--colour: #FF5F1D;

Brightness & contrast

Relative luminance0.29533WCAG 2.x, 0 is black and 1 is white
Perceived brightness157.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.91:1
Contrast with white3.04:1WCAG normal text: Fail
Contrast with black6.91:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#00A0E2

Colour vision & accessibility

Protanopia#8E7D0Cno red cones; affects about 1% of men; ΔE 64.1 from the original
Deuteranopia#B5A110no green cones; the most common form, about 1% of men; ΔE 64.6 from the original
Tritanopia#FF3054no blue cones; rare, and affects men and women equally; ΔE 37 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.04:1WCAG large text: AA
Contrast with black, large text6.91:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 11.21, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1DBDFF
Analogous#FF1D4C, #FFD01D
Triadic#1DFF5F, #5F1DFF
Split complementary#1DFFD0, #1D4CFF
Tetradic#4CFF1D, #1DBDFF, #D01DFF

Tints, shades & saturation

Lighter +40%#FFEFE9
Lighter +30%#FFCBB6
Lighter +20%#FFA783
Lighter +10%#FF8350
Darker −10%#E94400
Darker −20%#B63500
Darker −30%#832600
Darker −40%#501700
More saturated +25%#FF5F1D
Less saturated −25%#E36B39

Channel breakdown

R255
G95
B29
Red255 (100%)
Green95 (37.3%)
Blue29 (11.4%)
Hue17.52°
Saturation (HSL)100%
Lightness55.69%
Dominant channelRed
Hex per channelR FF · G 5F · B 1D

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Every value on this page was computed from “ff5f1d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.