Recognised as Colour
#FF6F1C
- #FF6F1C
- Orange
- Dark
- Nearest: Dark orange
#FF6F1C is a orange with RGB values 255, 111, 28 and HSL 22°, 100%, 55%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark orange.
Colour values
#FF6F1C#FF6F1C
HEX#FF6F1C
RGBrgb(255, 111, 28)
RGB (0–1)1, 0.4353, 0.1098
RGB percentages100%, 43.5%, 11%
HSLhsl(21.9, 100%, 55.5%)
HSV / HSBhsv(21.9, 89%, 100%)
CMYK0%, 56.5%, 89%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,740,124
CSS custom property--colour: #FF6F1C;
Brightness & contrast
Relative luminance0.32713WCAG 2.x, 0 is black and 1 is white
Perceived brightness163.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.54:1
Contrast with white2.78:1WCAG normal text: Fail
Contrast with black7.54:1WCAG normal text: AAA
Greyscale equivalent#888888
Inverted#0090E3
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.78:1WCAG large text: Fail
Contrast with black, large text7.54:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1CACFF
Analogous#FF1C3B, #FFE11C
Triadic#1CFF6F, #6F1CFF
Split complementary#1CFFE1, #1C3AFF
Tetradic#3AFF1C, #1CACFF, #E11CFF
Tints, shades & saturation
Channel breakdown
R255
G111
B28
Red255 (100%)
Green111 (43.5%)
Blue28 (11%)
Hue21.94°
Saturation (HSL)100%
Lightness55.49%
Dominant channelRed
Hex per channelR FF · G 6F · B 1C
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Harmonies
Similar named colours
Also reads as
FF6F1C (chemical formula)
- Formula
- 163.995 g/mol
- 9 atoms
FF6F1C has a molar mass of 163.995 g/mol, made up of 9 atoms across 2 elements: 8 × F, 1 × C.
Molar mass
Molar mass163.995 g/mol
Total atoms per molecule9
Distinct elements2
Mass of one molecule2.723201 × 10^-22 g
Molecules per gram3.672149 × 10^21
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
F92.7%
C7.3%
Fluorine (F × 8)151.984 g/mol, 92.676%
Carbon (C)12.011 g/mol, 7.324%
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