Recognised as Colour
#F55302
- #F55302
- Orange
- Dark
- Nearest: Orange red
#F55302 is a orange with RGB values 245, 83, 2 and HSL 20°, 98%, 48%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#F55302#F55302
HEX#F55302
RGBrgb(245, 83, 2)
RGB (0–1)0.9608, 0.3255, 0.0078
RGB percentages96.1%, 32.5%, 0.8%
HSLhsl(20, 98.4%, 48.4%)
HSV / HSBhsv(20, 99.2%, 96.1%)
CMYK0%, 66.1%, 99.2%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,077,570
CSS custom property--colour: #F55302;
Brightness & contrast
Relative luminance0.25603WCAG 2.x, 0 is black and 1 is white
Perceived brightness148.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.12:1
Contrast with white3.43:1WCAG normal text: Fail
Contrast with black6.12:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#0AACFD
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.43:1WCAG large text: AA
Contrast with black, large text6.12:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#02A4F5
Analogous#F5022B, #F5CD02
Triadic#02F553, #5302F5
Split complementary#02F5CD, #022AF5
Tetradic#2BF502, #02A4F5, #CC02F5
Tints, shades & saturation
Channel breakdown
R245
G83
B2
Red245 (96.1%)
Green83 (32.5%)
Blue2 (0.8%)
Hue20°
Saturation (HSL)98.38%
Lightness48.43%
Dominant channelRed
Hex per channelR F5 · G 53 · B 02
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Also reads as
F55302 (chemical formula)
- Formula
- 1,050,627.396 g/mol
- 55302 atoms
F55302 has a molar mass of 1,050,627.396 g/mol, made up of 55302 atoms across 1 element: 55302 × F.
Molar mass
Molar mass1,050,627.396 g/mol
Total atoms per molecule55302
Distinct elements1
Mass of one molecule1.7446078 × 10^-18 g
Molecules per gram5.7319472 × 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 × 55302)1,050,627.396 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