Recognised as Colour
#F5022B
- #F5022B
- Red
- Dark
- Nearest: Crimson
#F5022B is a red with RGB values 245, 2, 43 and HSL 350°, 98%, 48%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Crimson.
Colour values
#F5022B#F5022B
HEX#F5022B
RGBrgb(245, 2, 43)
RGB (0–1)0.9608, 0.0078, 0.1686
RGB percentages96.1%, 0.8%, 16.9%
HSLhsl(349.9, 98.4%, 48.4%)
HSV / HSBhsv(349.9, 99.2%, 96.1%)
CMYK0%, 99.2%, 82.4%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,056,875
CSS custom property--colour: #F5022B;
Brightness & contrast
Relative luminance0.1963WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.93:1
Contrast with white4.26:1WCAG normal text: Fail
Contrast with black4.93:1WCAG normal text: AA
Greyscale equivalent#393939
Inverted#0AFDD4
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.26:1WCAG large text: AA
Contrast with black, large text4.93:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#02F5CC
Analogous#F502A4, #F55302
Triadic#2BF502, #022BF5
Split complementary#02F553, #02A4F5
Tetradic#A4F502, #02F5CC, #5302F5
Tints, shades & saturation
Channel breakdown
R245
G2
B43
Red245 (96.1%)
Green2 (0.8%)
Blue43 (16.9%)
Hue349.88°
Saturation (HSL)98.38%
Lightness48.43%
Dominant channelRed
Hex per channelR F5 · G 02 · B 2B
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Also reads as
F5022B (chemical formula)
- Formula
- 95,418.766 g/mol
- 5023 atoms
F5022B has a molar mass of 95,418.766 g/mol, made up of 5023 atoms across 2 elements: 5022 × F, 1 × B.
Molar mass
Molar mass95,418.766 g/mol
Total atoms per molecule5023
Distinct elements2
Mass of one molecule1.5844659 × 10^-19 g
Molecules per gram6.311275 × 10^18
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%
B0%
Fluorine (F × 5022)95,407.956 g/mol, 99.989%
Boron (B)10.81 g/mol, 0.011%
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page