Recognised as Colour
#F55252
- #F55252
- Red
- Dark
- Nearest: Tomato
#F55252 is a red with RGB values 245, 82, 82 and HSL 0°, 89%, 64%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Tomato.
Colour values
#F55252#F55252
HEX#F55252
RGBrgb(245, 82, 82)
RGB (0–1)0.9608, 0.3216, 0.3216
RGB percentages96.1%, 32.2%, 32.2%
HSLhsl(0, 89.1%, 64.1%)
HSV / HSBhsv(0, 66.5%, 96.1%)
CMYK0%, 66.5%, 66.5%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,077,394
CSS custom property--colour: #F55252;
Brightness & contrast
Relative luminance0.26056WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.21:1
Contrast with white3.38:1WCAG normal text: Fail
Contrast with black6.21:1WCAG normal text: AA
Greyscale equivalent#757575
Inverted#0AADAD
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.38:1WCAG large text: AA
Contrast with black, large text6.21:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#52F5F5
Analogous#F552A4, #F5A452
Triadic#52F552, #5252F5
Split complementary#52F5A4, #52A4F5
Tetradic#A4F552, #52F5F5, #A452F5
Tints, shades & saturation
Channel breakdown
R245
G82
B82
Red245 (96.1%)
Green82 (32.2%)
Blue82 (32.2%)
Hue0°
Saturation (HSL)89.07%
Lightness64.12%
Dominant channelRed
Hex per channelR F5 · G 52 · B 52
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Also reads as
F55252 (chemical formula)
- Formula
- 1,049,677.496 g/mol
- 55252 atoms
F55252 has a molar mass of 1,049,677.496 g/mol, made up of 55252 atoms across 1 element: 55252 × F.
Molar mass
Molar mass1,049,677.496 g/mol
Total atoms per molecule55252
Distinct elements1
Mass of one molecule1.7430305 × 10^-18 g
Molecules per gram5.7371343 × 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 × 55252)1,049,677.496 g/mol, 100%
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