Recognised as Colour
#FE5781
- #FE5781
- Red
- Dark
- Nearest: Hot pink
#FE5781 is a red with RGB values 254, 87, 129 and HSL 345°, 99%, 67%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Hot pink.
Colour values
#FE5781#FE5781
HEX#FE5781
RGBrgb(254, 87, 129)
RGB (0–1)0.9961, 0.3412, 0.5059
RGB percentages99.6%, 34.1%, 50.6%
HSLhsl(344.9, 98.8%, 66.9%)
HSV / HSBhsv(344.9, 65.7%, 99.6%)
CMYK0%, 65.7%, 49.2%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,668,545
CSS custom property--colour: #FE5781;
Brightness & contrast
Relative luminance0.29472WCAG 2.x, 0 is black and 1 is white
Perceived brightness160.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.89:1
Contrast with white3.05:1WCAG normal text: Fail
Contrast with black6.89:1WCAG normal text: AA
Greyscale equivalent#7E7E7E
Inverted#01A87E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.05:1WCAG large text: AA
Contrast with black, large text6.89:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#57FED4
Analogous#FE57D5, #FE8157
Triadic#81FE57, #5781FE
Split complementary#57FE81, #57D5FE
Tetradic#D4FE57, #57FED4, #8057FE
Tints, shades & saturation
Channel breakdown
R254
G87
B129
Red254 (99.6%)
Green87 (34.1%)
Blue129 (50.6%)
Hue344.91°
Saturation (HSL)98.82%
Lightness66.86%
Dominant channelRed
Hex per channelR FE · G 57 · B 81
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Harmonies
Similar named colours
Also reads as
Fe5781 (chemical formula)
- Formula
- 322,839.945 g/mol
- 5781 atoms
Fe5781 has a molar mass of 322,839.945 g/mol, made up of 5781 atoms across 1 element: 5781 × Fe.
Molar mass
Molar mass322,839.945 g/mol
Total atoms per molecule5781
Distinct elements1
Mass of one molecule5.3608834 × 10^-19 g
Molecules per gram1.8653642 × 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
Fe100%
Iron (Fe × 5781)322,839.945 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