Recognised as Colour
#F38901
- #F38901
- Orange
- Dark
- Nearest: Dark orange
#F38901 is a orange with RGB values 243, 137, 1 and HSL 34°, 99%, 48%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark orange.
Colour values
#F38901#F38901
HEX#F38901
RGBrgb(243, 137, 1)
RGB (0–1)0.9529, 0.5373, 0.0039
RGB percentages95.3%, 53.7%, 0.4%
HSLhsl(33.7, 99.2%, 47.8%)
HSV / HSBhsv(33.7, 99.6%, 95.3%)
CMYK0%, 43.6%, 99.6%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,960,321
CSS custom property--colour: #F38901;
Brightness & contrast
Relative luminance0.36948WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.39:1
Contrast with white2.5:1WCAG normal text: Fail
Contrast with black8.39:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#0C76FE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.5:1WCAG large text: Fail
Contrast with black, large text8.39:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#016BF3
Analogous#F31001, #E4F301
Triadic#01F389, #8901F3
Split complementary#01E4F3, #1001F3
Tetradic#01F310, #016BF3, #F301E4
Tints, shades & saturation
Channel breakdown
R243
G137
B1
Red243 (95.3%)
Green137 (53.7%)
Blue1 (0.4%)
Hue33.72°
Saturation (HSL)99.18%
Lightness47.84%
Dominant channelRed
Hex per channelR F3 · G 89 · B 01
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Also reads as
F38901 (chemical formula)
- Formula
- 739,041.198 g/mol
- 38901 atoms
F38901 has a molar mass of 739,041.198 g/mol, made up of 38901 atoms across 1 element: 38901 × F.
Molar mass
Molar mass739,041.198 g/mol
Total atoms per molecule38901
Distinct elements1
Mass of one molecule1.2272068 × 10^-18 g
Molecules per gram8.148586 × 10^17
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
F100%
Fluorine (F × 38901)739,041.198 g/mol, 100%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Elements in this formula
Nerdulate something else
Nothing in mind? Surprise me · today’s page