Recognised as Colour
#FE3021
- #FE3021
- Red
- Dark
- Nearest: Red
#FE3021 is a red with RGB values 254, 48, 33 and HSL 4°, 99%, 56%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Red.
Colour values
#FE3021#FE3021
HEX#FE3021
RGBrgb(254, 48, 33)
RGB (0–1)0.9961, 0.1882, 0.1294
RGB percentages99.6%, 18.8%, 12.9%
HSLhsl(4.1, 99.1%, 56.3%)
HSV / HSBhsv(4.1, 87%, 99.6%)
CMYK0%, 81.1%, 87%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,658,465
CSS custom property--colour: #FE3021;
Brightness & contrast
Relative luminance0.23295WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.66:1
Contrast with white3.71:1WCAG normal text: Fail
Contrast with black5.66:1WCAG normal text: AA
Greyscale equivalent#5B5B5B
Inverted#01CFDE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.71:1WCAG large text: AA
Contrast with black, large text5.66:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#21EFFE
Analogous#FE2181, #FE9F21
Triadic#21FE30, #3021FE
Split complementary#21FE9F, #2180FE
Tetradic#81FE21, #21EFFE, #9F21FE
Tints, shades & saturation
Channel breakdown
R254
G48
B33
Red254 (99.6%)
Green48 (18.8%)
Blue33 (12.9%)
Hue4.07°
Saturation (HSL)99.1%
Lightness56.27%
Dominant channelRed
Hex per channelR FE · G 30 · B 21
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Also reads as
Fe3021 (chemical formula)
- Formula
- 168,707.745 g/mol
- 3021 atoms
Fe3021 has a molar mass of 168,707.745 g/mol, made up of 3021 atoms across 1 element: 3021 × Fe.
Molar mass
Molar mass168,707.745 g/mol
Total atoms per molecule3021
Distinct elements1
Mass of one molecule2.801458 × 10^-19 g
Molecules per gram3.5695698 × 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 × 3021)168,707.745 g/mol, 100%
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